Note 14 - Stockholders' Equity - Warrants Outstanding (Details)
Dec. 31, 2022
$ / shares
|Exercise price per share (in dollars per share) | $ / shares||$ 1.90|
|Shares subject to purchase (in shares) | shares||6,372|
Exercise price per share or per unit of warrants or rights outstanding.
Reference 1: http://www.xbrl.org/2003/role/disclosureRef