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Note 20 - Earnings (Loss) Per Common Share - Reconciliation of Weighted Average Shares Outstanding Used in Calculation of Basic and Diluted (Loss) Earnings Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Net income (loss) $ 1,668 $ (3,949)
Less distributed and undistributed earnings allocable to restricted award holders 0 0
Net income (loss) allocable to common stockholders $ 1,668 $ (3,949)
Basic (in dollars per share) $ 0.08 $ (0.19)
Diluted (in dollars per share) $ 0.08 $ (0.19)
Basic (in shares) 21,084 20,865
Weighted average additional shares assuming conversion of potential common shares (in shares) 2 0
Weighted average shares outstanding – diluted (in shares) 21,086 20,865