| X | ||||||||||
- Definition Boolean flag that is true when the XBRL content amends previously-filed or accepted submission. No definition available.
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| X | ||||||||||
- Definition Area code of city No definition available.
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| X | ||||||||||
- Definition End date of current fiscal year in the format --MM-DD. No definition available.
|
| X | ||||||||||
- Definition Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY. No definition available.
|
| X | ||||||||||
- Definition This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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| X | ||||||||||
- Definition For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD. No definition available.
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| X | ||||||||||
- Definition Boolean flag that is true only for a form used as an quarterly report. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Boolean flag that is true only for a form used as a transition report. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'. No definition available.
|
| X | ||||||||||
- Definition Address Line 1 such as Attn, Building Name, Street Name No definition available.
|
| X | ||||||||||
- Definition Name of the City or Town No definition available.
|
| X | ||||||||||
- Definition Code for the postal or zip code No definition available.
|
| X | ||||||||||
- Definition Name of the state or province. No definition available.
|
| X | ||||||||||
- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
|
| X | ||||||||||
- Definition Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
|
| X | ||||||||||
- Definition Indicate if registrant meets the emerging growth company criteria. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen. No definition available.
|
| X | ||||||||||
- Definition Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Two-character EDGAR code representing the state or country of incorporation. No definition available.
|
| X | ||||||||||
- Definition Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Indicates that the company is a Smaller Reporting Company (SRC). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Local phone number for entity. No definition available.
|
| X | ||||||||||
- Definition Title of a 12(b) registered security. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Name of the Exchange on which a security is registered. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Trading symbol of an instrument as listed on an exchange. No definition available.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
Condensed Consolidated Balance Sheets (Unaudited) - USD ($) |
Mar. 31, 2022 |
Dec. 31, 2021 |
|---|---|---|
| Assets | ||
| Cash | $ 23,421,237 | $ 29,687,944 |
| Prepaid expenses and other current assets | 1,847,165 | 1,716,057 |
| Total Assets | 25,268,402 | 31,404,001 |
| Liabilities | ||
| Accounts payable | 1,425,834 | 509,583 |
| Accrued expenses and other current liabilities | 2,197,640 | 1,835,228 |
| Total current liabilities | 3,623,474 | 2,344,811 |
| Warrant liabilities | 283,720 | 372,730 |
| Total Liabilities | 3,907,194 | 2,717,541 |
| Commitments and contingencies (Note 8) | ||
| Stockholders' equity | ||
| Common stock, par value of $0.0001; 115,000,000 shares authorized; 15,133,286 and 14,433,286 shares issued and outstanding as of March 31, 2022, and December 31, 2021, respectively | 1,513 | 1,443 |
| Additional paid-in capital | 95,556,672 | 95,516,986 |
| Accumulated deficit | (74,196,977) | (66,831,969) |
| Total stockholders' equity | 21,361,208 | 28,686,460 |
| Total Liabilities and Stockholders' Equity | $ 25,268,402 | $ 31,404,001 |
| X | ||||||||||
- Definition Amount of expenses incurred but not yet paid nor invoiced, and current liabilities classified as other. No definition available.
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for common and preferred stock. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- References No definition available.
|
Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - $ / shares |
Mar. 31, 2022 |
Dec. 31, 2021 |
|---|---|---|
| Common stock, par value (in dollars per share) | $ 0.0001 | $ 0.0001 |
| Common stock, shares authorized (in shares) | 115,000,000 | 115,000,000 |
| Common stock, shares issued (in shares) | 15,133,286 | 14,433,286 |
| Common stock, shares outstanding (in shares) | 15,133,286 | 14,433,286 |
| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Condensed Consolidated Statements of Operations (Unaudited) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2022 |
Mar. 31, 2021 |
|
| Operating expenses | ||
| Research and development | $ 5,830,018 | $ 391,161 |
| General and administrative | 1,620,139 | 1,480,967 |
| Total operating expenses | 7,450,157 | 1,872,128 |
| Loss from operations | (7,450,157) | (1,872,128) |
| Other income (expense) | ||
| Gain on remeasurement of warrant liabilities | 89,010 | 923,480 |
| Interest and other income (expense), net | (232) | 148 |
| Total other income (expense), net | 88,778 | 923,628 |
| Loss before provision for income taxes | (7,361,379) | (948,500) |
| Provision for income taxes | 3,629 | 800 |
| Net loss | $ (7,365,008) | $ (949,300) |
| Net loss per share: | ||
| Basic and diluted (in dollars per share) | $ (0.40) | $ (0.10) |
| Weighted average shares outstanding | ||
| Basic and diluted (in shares) | 18,466,586 | 9,231,737 |
| X | ||||||||||
- Definition Amount of interest and other income (expense), net. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
Condensed Consolidated Statement of Stockholders' Equity (Deficit) (Unaudited) - USD ($) |
Common Stock [Member] |
Additional Paid-in Capital [Member] |
Retained Earnings [Member] |
Total |
|---|---|---|---|---|
| Balance (in shares) at Dec. 31, 2020 | 9,231,737 | |||
| Balance at Dec. 31, 2020 | $ 923 | $ 63,774,920 | $ (58,310,093) | $ 5,465,750 |
| Net loss | $ 0 | 0 | (949,300) | (949,300) |
| Balance (in shares) at Mar. 31, 2021 | 9,231,737 | |||
| Balance at Mar. 31, 2021 | $ 923 | 63,774,920 | (59,259,393) | 4,516,450 |
| Balance (in shares) at Dec. 31, 2021 | 14,433,286 | |||
| Balance at Dec. 31, 2021 | $ 1,443 | 95,516,986 | (66,831,969) | 28,686,460 |
| Common stock issued in connection with warrant exercises (in shares) | 700,000 | |||
| Common stock issued in connection with warrant exercises | $ 70 | 0 | 0 | 70 |
| Stock-based compensation expense | 0 | 39,686 | 0 | 39,686 |
| Net loss | $ 0 | (7,365,008) | (7,365,008) | |
| Balance (in shares) at Mar. 31, 2022 | 15,133,286 | |||
| Balance at Mar. 31, 2022 | $ 1,513 | $ 95,556,672 | $ (74,196,977) | $ 21,361,208 |
| X | ||||||||||
- Definition Number of shares issued for warrants exercised during the current period. No definition available.
|
| X | ||||||||||
- Definition Value of stock issued as a result of the exercise of warrants. No definition available.
|
| X | ||||||||||
- Definition Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of shares issued which are neither cancelled nor held in the treasury. No definition available.
|
| X | ||||||||||
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid and other current liabilities. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including, but not limited to, disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; excluding effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of expense (income) related to adjustment to fair value of warrant liability. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of increase (decrease) in prepaid expenses, and assets classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of noncash expense for share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
Note 1 - Organization and Nature of Operations |
3 Months Ended |
|---|---|
Mar. 31, 2022 | |
| Notes to Financial Statements | |
| Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] |
1. ORGANIZATION AND NATURE OF OPERATIONS
On December 14, 2020, Reviva Pharmaceuticals Holdings, Inc. (the “Company”), a Delaware corporation and the successor by re-domiciliation to Tenzing Acquisition Corp. (“Tenzing”), a British Virgin Islands exempted company, Tenzing Merger Subsidiary Inc., a Delaware corporation and wholly-owned subsidiary of Tenzing (“Merger Sub”), and Reviva Pharmaceuticals, Inc., a Delaware corporation (together with its consolidated subsidiary), consummated a business combination (the “Business Combination”) through the merger of Merger Sub with and into Reviva Pharmaceuticals, Inc., contemplated by the previously announced Agreement and Plan of Merger, dated as of July 20, 2020 (the “Merger Agreement”), by and among Tenzing, Merger Sub, Reviva Pharmaceuticals, Inc., and the other parties thereto. Pursuant to the Merger Agreement, at the effective time of the Merger (the “Effective Time”), Merger Sub merged with and into Reviva Pharmaceuticals, Inc., with Reviva Pharmaceuticals, Inc. as the surviving company in the Merger and, after giving effect to such Merger, Reviva Pharmaceuticals, Inc. becoming a wholly-owned subsidiary of Reviva Pharmaceuticals Holdings, Inc. (together with its consolidated subsidiary).
Reviva Pharmaceuticals, Inc. was originally incorporated in the state of Delaware and commenced operations on May 1, 2006 and its Indian subsidiary, Reviva Pharmaceuticals India Pvt. Ltd. was incorporated in 2014. The Company is an emerging research based pharmaceutical company focused on developing a portfolio of internally discovered next generation safe and effective therapeutic drugs by using an integrated chemical genomics technology platform and proprietary chemistries. The Company is currently focused on developing drugs for the central nervous system (CNS), cardiovascular (CV), metabolic and inflammatory diseases. |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Note 2 - Summary of Significant Accounting Policies and Basis of Presentation |
3 Months Ended |
|---|---|
Mar. 31, 2022 | |
| Notes to Financial Statements | |
| Significant Accounting Policies [Text Block] |
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BASIS OF PRESENTATION
Basis of Presentation
The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 8 of Regulation S-X. Certain footnotes and other financial information normally required by accounting principles generally accepted in the United States of America, or GAAP, have been condensed or omitted in accordance with such rules and regulations. In management’s opinion, these condensed consolidated financial statements have been prepared on the same basis as our annual consolidated financial statements and notes thereto and include all adjustments, consisting of normal recurring items, considered necessary for the fair presentation. The operating results for the three months ended March 31, 2022, are not necessarily indicative of the results that may be expected for the year ending December 31, 2022.
The condensed consolidated balance sheet as of December 31, 2021, has been derived from our audited financial statements at that date but does not include all disclosures and financial information required by GAAP for complete financial statements. The information included in the quarterly report on Form 10-Q should be read in conjunction with our consolidated financial statements and notes thereto for the year ended December 31, 2021, which were included in our annual report on Form 10-K, as filed with the Securities and Exchange Commission on March 15, 2022.
Use of estimates
The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of expenses during the reporting periods covered by the financial statements and accompanying notes. Significant areas requiring the use of management estimates include, but are not limited to, valuation of intangible assets, depreciative and amortization useful lives, assumptions used to calculate the fair value of the contingent share consideration, stock-based compensation, beneficial conversion features, warrant values, deferred taxes and the assumptions used to calculate derivative liabilities. Actual results could differ materially from such estimates under different assumptions or circumstances.
Concentration of credit risk and other risks and uncertainties
Financial instruments that potentially subject the Company to a concentration of credit risk consist of cash. Substantially, all the Company’s cash is held in demand deposit form by one financial institution. The Company has not experienced any losses on its deposits of cash.
The Company is subject to all of the risks inherent in an early-stage company developing new pharmaceutical products. These risks include, but are not limited to, limited management resources, dependence upon medical acceptance of the product in development, regulatory approvals, successful clinical trials, availability and willingness of patients to participate in human trials, and competition in the pharmaceutical industry. The Company’s operating results may be materially affected by the foregoing factors. |
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- References No definition available.
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- Definition The entire disclosure for all significant accounting policies of the reporting entity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Note 3 - Public Offering |
3 Months Ended |
|---|---|
Mar. 31, 2022 | |
| IPO [Member] | |
| Notes to Financial Statements | |
| Stockholders' Equity Note Disclosure [Text Block] |
3. PUBLIC OFFERING
On June 1, 2021, the Company completed a public offering (the “Offering”) of Units (each, a “Unit”), with each Unit consisting of (a) one share of common stock (or pre-funded warrant to purchase one share of common stock in lieu thereof, with an exercise price of $0.0001 per share, each a “Pre-Funded Warrant”) and (b) one warrant to purchase 0.75 of a share of our common stock, with an exercise price of $4.125 per share (each, an “Investor Warrant”). Pursuant to the Offering, the Company sold 4,133,400 Units consisting of (a) one share of common stock and (b) one Investor Warrant (inclusive the underwriter’s overallotment option of 1,200,000 of such Units), and 5,066,600 Units consisting of (a) one Pre-Funded Warrant and (b) one Investor Warrant. The Units had no stand-alone rights and were not certificated or issued as stand-alone securities. Accordingly, as result of the sale of such Units in the Offering, the Company issued in aggregate 4,133,400 shares of common stock, Pre-Funded Warrants exercisable for 5,066,600 shares of common stock, and Investor Warrants exercisable for 6,900,000 shares of common stock. The offering price was $3.75 for each Unit consisting of (a) one share of common stock and (b) one Investor Warrant, and $3.7499 for each Unit consisting of (a) one Pre-Funded Warrant and (b) one Investor Warrant. Net proceeds from the Offering were approximately $31.5 million, after underwriter discounts, commissions, legal and accounting fees, and certain other costs of approximately $3.0 million.
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- References No definition available.
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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 4 - At the Market Offering |
3 Months Ended |
|---|---|
Mar. 31, 2022 | |
| Notes to Financial Statements | |
| At the Market Offering [Text BLock] |
4. AT THE MARKET OFFERING
In January 2022, the Company entered into an At The Market Offering Agreement (the “ATM Agreement”) with H.C. Wainwright & Co., LLC, as sales agent (“Wainwright”), pursuant to which the Company may offer and sell, from time to time through Wainwright, shares of its common stock for aggregate gross proceeds of up to $12.9 million (the “Shares”). As of March 31, 2022, the Company has not made any sales pursuant to the ATM Agreement. |
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- Definition The entire disclosure for at the market offering No definition available.
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- References No definition available.
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Note 5 - Loss Per Share |
3 Months Ended |
|---|---|
Mar. 31, 2022 | |
| Notes to Financial Statements | |
| Earnings Per Share [Text Block] |
5. LOSS PER SHARE
Basic and diluted net loss per share is computed by dividing the net loss for the period by the weighted average number of common stock outstanding during the period. For the three months ended March 31, 2022 and 2021, the Company has excluded the potential effect of warrants to purchase shares of common stock totaling 13,883,732 and 7,007,581 shares respectively and the dilutive effect of outstanding stock options totaling 192,898, and 65,471 respectively in the calculation of diluted loss per share, as the effect would be anti-dilutive due to losses incurred. Additionally, 1,000,000 earn-out shares have been excluded as they are not considered issued for accounting purposes. |
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- References No definition available.
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- Definition The entire disclosure for earnings per share. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Note 6 - Warrants |
3 Months Ended | |||||||||||||||||||||
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Mar. 31, 2022 | ||||||||||||||||||||||
| Notes to Financial Statements | ||||||||||||||||||||||
| Warrants [Text Block] |
6. WARRANTS
As of March 31, 2022, there were public warrants outstanding to purchase an aggregate of 6,325,000 shares of common stock and private warrants outstanding to purchase an aggregate of 556,313 shares of common stock.
Each public warrant entitles the holder thereof to purchase one share of common stock at a price of $11.50 per share, subject to adjustment. No public warrants will be exercisable for cash unless we have an effective and current registration statement covering the issuance of the shares of common stock issuable upon exercise of the public warrants and a current prospectus relating to such shares of common stock.
We may call the public warrants for redemption, in whole and not in part, at a price of $0.01 per warrant;
The private warrants are substantially similar to the public warrants except such private warrants;
In no event will the Company be required to net cash settle either the public or the private warrants.
The Company classified the private warrants pursuant to ASC 815 as derivative liabilities with subsequent changes in their fair values to be recognized in the consolidated financial statements at each reporting date. The Company calculated the fair value of the private warrants as of March 31, 2022 as $283,720 using a Black-Scholes model. The key inputs used in the Black-Scholes calculation were, the risk-free interest rate, expected volatility, expected life, exercise price and stock price. The risk-free interest rate was estimated to be 2.42%, the expected volatility was estimated to be 74.6%, and the expected life was estimated to be 3.71 years. The exercise price was $11.50, and the stock price $2.46. Due to fair value changes during the three months ended March 31, 2022, the Company recorded a gain on remeasurement of warrant liabilities of $89,010.
The exercise price and number of shares of common stock issuable on exercise of the warrants may be adjusted in certain circumstances including in the event of a share dividend, extraordinary dividend or a recapitalization, reorganization, merger or consolidation.
Further, there were assumed warrants outstanding to purchase an aggregate of 126,268 shares of common stock. These warrants were classified as equity as of March 31, 2022, and December 31, 2021. The fair value of these warrants on the date of issuance was $1,279,182.
In connection with the Offering, the Company issued Pre-Funded Warrants exercisable for 5,066,600 shares of common stock. Total proceeds from the sale of Units including the Pre-Funded Warrants were approximately $19.0 million and the Pre-Funded Warrants are exercisable into one share of common stock at an exercise price of $0.0001 per share at any time after issuance. Additionally, in connection with the Offering, the Company issued Investor Warrants exercisable for 6,900,000 shares of common stock with an exercise price of $4.125 per share of common stock any time after issuance. The Investor Warrants expire on June 1, 2026. No Investor Warrants were exercised during the three months ended March 31, 2022. The Company has determined that as the Pre-Funded Warrants and Investor Warrants were issued at fair value in a public offering of Units with no debt funding included in the offering, the Pre-Funded Warrants and Investor Warrants should be classified as equity. |
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- Definition The entire disclosure for warrants. No definition available.
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- References No definition available.
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Note 7 - Stock Option Plan and Stock-based Compensation |
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| Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Share-Based Payment Arrangement [Text Block] |
7. STOCK OPTION PLANS AND STOCK-BASED COMPENSATION
Stock-Based Compensation Expense
The Company records stock-based compensation expense in connection with the amortization of the fair value of stock options granted to employees, non-employee consultants and non-employee directors. During the three months ended March 31, 2022 and 2021, the Company recorded stock-based compensation of $39,686 and $0 respectively. As of March 31, 2022 and 2021, the Company had unrecognized stock-based compensation expense of $241,712 and $0, that is expected to be recognized over a weighted-average period of 2.0 and 0 years, respectively.
Determining Fair Value
Valuation and Recognition – The fair value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model. The Black-Scholes pricing model utilizes the following assumptions:
Expected Term – Expected life of an option award is the average length of time over which the Company expects employees will exercise their options, which is based on historical experience with similar grants.
Expected Volatility - Expected volatility is based on the Company’s historical stock volatility data over the expected term of the awards.
Risk-Free Interest Rate - The Company bases the risk-free interest rate on the implied yield currently available on U.S. Treasury zero-coupon issues with an equivalent expected term.
Dividend Yield – The Company has not paid a dividend and does not anticipate paying a dividend in the foreseeable future.
There were no options granted during the first quarter of fiscal year 2022.
Activity under the stock plans for the three months ending March 31, 2022, is as follows:
Options outstanding under the stock plans are as follows as of March 31, 2022:
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- Definition The entire disclosure for share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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Note 8 - Commitments and Contingencies |
3 Months Ended |
|---|---|
Mar. 31, 2022 | |
| Notes to Financial Statements | |
| Commitments and Contingencies Disclosure [Text Block] |
8. COMMITMENTS AND CONTINGENCIES
Clinical trials
Since 2010, the Company has entered into multiple clinical trial agreements with medical institutions in the United States, Europe and Asia for the purpose of enrolling patients into various clinical trials. The agreements are substantially similar by trial and include a detailed listing of the clinical trial services for which the Company will pay, how much will be paid for each service, a set-up charge (if any), Investigational Review Board fees, contractual term, and other provisions. The clinical trial services provided by each site generally include the screening of prospective patients and, for those patients to be enrolled in the study, administration of the Company’s investigation drug according to the trial protocol, any required hospitalization, ancillary medical supplies, and 2-week patient follow-up. Further, each agreement requires the Company to indemnify each respective clinical site against any and all liability, loss, or damage it may suffer as a result of third-party claims; the Company maintains general product liability insurance of not less than $5 million in conjunction with this indemnification. The agreements may be terminated upon 30 days’ written notice, subject to conditions of paying all liabilities incurred through the date of termination. Additionally, with each screened patient, the Company incurs expense with other entities engaged to provide independent review of patient medical records.
Indemnification
From time to time, in its normal course of business, the Company may indemnify other parties, with whom it enters into contractual relationships, including lessors and parties to other transactions with the Company. The Company may agree to hold other parties harmless against specific losses, such as those that could arise from a breach of representation, covenant or third-party infringement claims. It may not be possible to determine the maximum potential amount of liability under such indemnification obligations due to the unique facts and circumstances that are likely to be involved in each particular claim and indemnification provision. Historically, there have been no such indemnification claims. The Company has also indemnified its directors and executive officers, to the extent legally permissible, against all liabilities reasonably incurred in connection with any action in which such individual may be involved by reason of such individual being or having been a director or executive officer.
Operating Leases
The Company adopted ASC 842 to its existing lease on January 1, 2020. The Company has elected to apply the short-term lease exception to leases of one year or less. Presently, the Company has a single twelve-month lease on its Corporate Office located at 19925 Stevens Creek Blvd., Suite 100, Cupertino, CA 95014. The monthly lease payment is approximately $1,300 and the lease was renewed in February 2021 and again on February 1, 2022, for another 12-month term.
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- Definition The entire disclosure for commitments and contingencies. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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Significant Accounting Policies (Policies) |
3 Months Ended |
|---|---|
Mar. 31, 2022 | |
| Accounting Policies [Abstract] | |
| Basis of Accounting, Policy [Policy Text Block] | Basis of Presentation
The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and Article 8 of Regulation S-X. Certain footnotes and other financial information normally required by accounting principles generally accepted in the United States of America, or GAAP, have been condensed or omitted in accordance with such rules and regulations. In management’s opinion, these condensed consolidated financial statements have been prepared on the same basis as our annual consolidated financial statements and notes thereto and include all adjustments, consisting of normal recurring items, considered necessary for the fair presentation. The operating results for the three months ended March 31, 2022, are not necessarily indicative of the results that may be expected for the year ending December 31, 2022.
The condensed consolidated balance sheet as of December 31, 2021, has been derived from our audited financial statements at that date but does not include all disclosures and financial information required by GAAP for complete financial statements. The information included in the quarterly report on Form 10-Q should be read in conjunction with our consolidated financial statements and notes thereto for the year ended December 31, 2021, which were included in our annual report on Form 10-K, as filed with the Securities and Exchange Commission on March 15, 2022. |
| Use of Estimates, Policy [Policy Text Block] | Use of estimates
The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of expenses during the reporting periods covered by the financial statements and accompanying notes. Significant areas requiring the use of management estimates include, but are not limited to, valuation of intangible assets, depreciative and amortization useful lives, assumptions used to calculate the fair value of the contingent share consideration, stock-based compensation, beneficial conversion features, warrant values, deferred taxes and the assumptions used to calculate derivative liabilities. Actual results could differ materially from such estimates under different assumptions or circumstances. |
| Concentration Risk, Credit Risk, Policy [Policy Text Block] | Concentration of credit risk and other risks and uncertainties
Financial instruments that potentially subject the Company to a concentration of credit risk consist of cash. Substantially, all the Company’s cash is held in demand deposit form by one financial institution. The Company has not experienced any losses on its deposits of cash.
The Company is subject to all of the risks inherent in an early-stage company developing new pharmaceutical products. These risks include, but are not limited to, limited management resources, dependence upon medical acceptance of the product in development, regulatory approvals, successful clinical trials, availability and willingness of patients to participate in human trials, and competition in the pharmaceutical industry. The Company’s operating results may be materially affected by the foregoing factors. |
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- References No definition available.
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- Definition Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). No definition available.
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- Definition Disclosure of accounting policy for credit risk. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Note 7 - Stock Option Plan and Stock-based Compensation (Tables) |
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| Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
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| Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block] |
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding and exercisable options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition First portion of units issued during period. Each unit is consisting of (a) one share of common stock and (b) one Investor Warrant No definition available.
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- Definition Second portion of units issued during period. Each unit is consisting of one Pre-Funded Warrant and (b) one Investor Warrant. No definition available.
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- Definition The net cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. No definition available.
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- Definition Per unit amount of first portion units issued. No definition available.
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- Definition Per unit amount of second portion units issued. No definition available.
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- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. No definition available.
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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 4 - At the Market Offering (Details Textual) - H.C. Wainwright & Co [Member] - The Market Offering Agreement "ATM Agreement" [Member] - USD ($) shares in Thousands, $ in Millions |
1 Months Ended | |
|---|---|---|
Jan. 31, 2022 |
Mar. 31, 2022 |
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| Sale of Stock Agreement, Maximum Aggregate Gross Proceeds | $ 12.9 | |
| Shares, Issued (in shares) | 0 |
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- Definition Information on the maximum aggregate gross proceeds to be received from the agreement with H.C. Wainwright & Co. No definition available.
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- Definition Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 5 - Loss Per Share (Details Textual) - shares |
3 Months Ended | |
|---|---|---|
Mar. 31, 2022 |
Mar. 31, 2021 |
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| Warrant [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 13,883,732 | 7,007,581 |
| Share-Based Payment Arrangement, Option [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 192,898 | 65,471 |
| Earn-out Shares [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 1,000,000 | |
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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The number of warrants or rights exercised during period. No definition available.
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- Definition Redemption price per share or per unit of warrants or rights. No definition available.
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- Definition The threshold closing price, as adjusted for stock splits, stock dividends, reorganizations or recapitalizations, for any 20 trading days within any 30-trading day period. No definition available.
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- Definition Threshold period of specified consecutive trading days within which closing stock price must exceed a price per share amount for specified number of trading days, as adjusted for stock splits, stock dividends, reorganizations and recapitalizations. No definition available.
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- Definition Threshold number of specified trading days that the closing price of ordinary shares must meet or exceed a price per share, as adjusted for stock splits, stock dividends, reorganizations and recapitalizations. No definition available.
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- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. No definition available.
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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of warrants or rights outstanding. No definition available.
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- Definition Value of input used to measure derivative liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. No definition available.
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Note 7 - Stock Option Plan and Stock-based Compensation (Details Textual) - USD ($) shares in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2022 |
Mar. 31, 2021 |
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| Share-Based Payment Arrangement, Expense | $ 39,686 | $ 0 |
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total | $ 241,712 | $ 0 |
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) | 2 years | 0 years |
| Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) | 0 | |
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
Note 7 - Stock Option Plan and Stock-based Compensation - Stock Option Activity (Details) - $ / shares |
Mar. 31, 2022 |
Dec. 31, 2021 |
|---|---|---|
| Options outstanding (in shares) | 192,898 | 192,898 |
| Beginning balance, weighted average exercise price per share (in dollars per share) | $ 8.46 | $ 8.46 |
| Vested and expected to vest (in shares) | 192,898 | |
| Vested and expected to vest, weighted average exercise price per share (in dollars per share) | $ 8.46 | |
| Share-Based Payment Arrangement, Option [Member] | ||
| Beginning balance, number of shares available for grant (in shares) | 1,257,334 | 1,257,334 |
| X | ||||||||||
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 8 - Commitments and Contingencies (Details Textual) |
3 Months Ended |
|---|---|
|
Mar. 31, 2022
USD ($)
| |
| Corporate Office Lease [Member] | |
| Lessee, Operating Lease, Term of Contract (Month) | 12 months |
| Lessee, Operating Lease, Monthly Lease Payment | $ 1,300 |
| Lessee, Operating Lease, Renewal Term (Month) | 12 months |
| Minimum [Member] | |
| General Product Liability Insurance | $ 5,000,000 |
| X | ||||||||||
- Definition Represents the amount of general product liability insurance. No definition available.
|
| X | ||||||||||
- Definition Monthly lease payment for lessee's operating lease. No definition available.
|
| X | ||||||||||
- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|







