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Note 19 - Loss Per Common Share - Schedule of Loss Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Net loss as reported $ (1,596,000) $ (2,494,000)
Less distributed and undistributed earnings allocable to restricted award holders 0 0
Net loss allocable to common stockholders $ (1,596,000) $ (2,494,000)
Basic (in dollars per share) $ (0.07) $ (0.11)
Diluted (in dollars per share) $ (0.07) $ (0.11)
Basic (in shares) 21,876 21,729
Weighted average additional shares assuming conversion of potential common shares (in shares) 0 0
Weighted average shares outstanding – diluted (in shares) 21,876 21,729