Note 13 - Stockholders' Equity - Warrants Outstanding (Details) |
Dec. 31, 2020
$ / shares
shares
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|---|---|
| Exercise price per share (in dollars per share) | $ / shares | $ 1.90 |
| Shares subject to purchase (in shares) | shares | 103,500 |
| X | ||||||||||
- 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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| X | ||||||||||
- Definition Number of warrants or rights outstanding. No definition available.
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