XML 69 R57.htm IDEA: XBRL DOCUMENT v3.23.1
Note 9 - Share Based Payments - Non-vested Stock Options (Details) - $ / shares
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Non-vested stock options, shares (in shares) 150,000 83,334
Non-vested stock options, Weighted average fair value (in dollars per share) $ 0.46 $ 0.47
Options granted, shares (in shares) 1,450,000 150,000
Options granted, Weighted average fair value (in dollars per share) $ 0.41 $ 0.46
Vested during period, shares (in shares) (50,000) (83,834)
Vested during period, Weighted average fair value (in dollars per share) $ (0.59) $ (0.47)
Options cancelled, shares (in shares) 0 0
Options cancelled, Weighted average fair value (in dollars per share) $ 0 $ 0
Non-vested shares under option, shares (in shares) 1,550,000 150,000
Non-vested shares under option, Weighted average fair value (in dollars per share) $ 0.42 $ 0.46