Annual report pursuant to Section 13 and 15(d)

Note 12 - Stock-based Compensation - Nonvested Option Awards Activity (Details)

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Note 12 - Stock-based Compensation - Nonvested Option Awards Activity (Details) - $ / shares
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Options granted, shares (in shares) 1,982,500 235,000
Share-based Payment Arrangement, Option [Member]    
Nonvested, shares (in shares) 235,000 23,500
Nonvested, weighted average grant date fair value (in dollars per share) $ 0.36 $ 0.17
Options granted, shares (in shares) 1,982,500 235,000
Granted, weighted average grant date fair value (in dollars per share) $ 1.55 $ 0.36
Vested, shares (in shares) (1,265,000) (23,500)
Vested, weighted average grant date fair value (in dollars per share) $ 1.35 $ 0.17
Forfeited, shares (in shares) 0 0
Forfeited, weighted average grant date fair value (in dollars per share) $ 0 $ 0
Nonvested, shares (in shares) 952,500 235,000
Nonvested, weighted average grant date fair value (in dollars per share) $ 1.51 $ 0.36