Annual report pursuant to Section 13 and 15(d)

Note 3 - Summary of Significant Accounting Policies - Net Loss Per Common Share (Details)

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Note 3 - Summary of Significant Accounting Policies - Net Loss Per Common Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Net loss $ (13,592) $ (12,292)
Weighted average shares outstanding—basic and diluted (in shares) 20,773,399 15,680,320
Basic and diluted net loss per share (in dollars per share) $ (0.65) $ (0.78)