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Note J - Earnings Per Share - Reconciliations of Basic and Diluted EPS (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Net income (loss) $ 3,345 $ (1,758)
Less: Preferred Stock dividends 122 122
Less: Earnings attributable to participating securities 404 0
Income (loss) attributable to common stockholders 2,819 (1,880)
Add back: Allocation of earnings to participating securities 404 0
Less: Re-allocation of earnings to participating securities considering potentially dilutive securities (389) 0
Numerator for diluted EPS $ 2,834 $ (1,880)
Basic (in shares) 6,991 6,651
Diluted (in shares) 7,286 6,651
Basic (in dollars per share) $ 0.40 $ (0.28)
Diluted (in dollars per share) $ 0.39 $ (0.28)