Consolidated Condensed Statements of Stockholders' Equity (Unaudited) - USD ($) |
Common Stock [Member]
January 2021 Offering [Member]
|
Common Stock [Member]
February 2021 Offering [Member]
|
Common Stock [Member]
March 2021 Offering [Member]
|
Common Stock [Member] |
Additional Paid-in Capital [Member]
January 2021 Offering [Member]
|
Additional Paid-in Capital [Member]
February 2021 Offering [Member]
|
Additional Paid-in Capital [Member]
March 2021 Offering [Member]
|
Additional Paid-in Capital [Member] |
Retained Earnings [Member] |
Total |
|---|---|---|---|---|---|---|---|---|---|---|
| Balance (in shares) at Dec. 31, 2020 | 15,483,010 | |||||||||
| Issuance of common stock (in shares) | 3,076,924 | 2,926,830 | 1,512,499 | |||||||
| Stock-based compensation (in shares) | 134,655 | |||||||||
| Balance (in shares) at Mar. 31, 2021 | 23,133,918 | |||||||||
| Balance at Dec. 31, 2020 | $ 25,000 | $ 115,459,000 | $ (104,544,000) | |||||||
| Issuance of common stock | $ 3,000 | $ 3,000 | $ 2,000 | $ 7,924,000 | $ 11,927,000 | $ 13,540,000 | ||||
| Stock-based compensation | 411,000 | |||||||||
| Stock option exercises | 38,000 | |||||||||
| Net loss | (4,625,000) | $ (4,625,000) | ||||||||
| Balance, end of period at Mar. 31, 2021 | $ 33,000 | 149,299,000 | (109,169,000) | $ 40,163,000 | ||||||
| Balance (in shares) at Dec. 31, 2021 | 36,809,187 | 36,809,187 | ||||||||
| Issuance of common stock (in shares) | 0 | 0 | 0 | |||||||
| Stock-based compensation (in shares) | 55,770 | |||||||||
| Balance (in shares) at Mar. 31, 2022 | 36,864,957 | 36,864,957 | ||||||||
| Balance at Dec. 31, 2021 | $ 46,000 | 215,943,000 | (125,292,000) | $ 90,697,000 | ||||||
| Issuance of common stock | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | ||||
| Stock-based compensation | 1,099,000 | |||||||||
| Stock option exercises | 0 | |||||||||
| Net loss | (7,916,000) | (7,916,000) | ||||||||
| Balance, end of period at Mar. 31, 2022 | $ 46,000 | $ 217,042,000 | $ (133,208,000) | $ 83,880,000 |
| 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
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| 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
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| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Value of stock issued as a result of the exercise of stock options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| 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
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