Annual report pursuant to Section 13 and 15(d)

Note 13 - Stockholders' Equity - Warrants Outstanding (Details)

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Note 13 - Stockholders' Equity - Warrants Outstanding (Details)
Dec. 31, 2020
$ / shares
shares
Exercise price per share (in dollars per share) | $ / shares $ 1.90
Shares subject to purchase (in shares) | shares 103,500