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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
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Net income (loss) $ 14,971 $ (1,694)
Less: Preferred stock dividends 496 496
Less: Earnings attributable to participating securities 1,858 0
Income (loss) attributable to common stockholders 12,617 (2,190)
Add back: Allocation of earnings to participating securities 1,858 0
Less: Re-allocation of earnings to participating securities considering potentially dilutive securities (1,766) 0
Numerator for diluted EPS $ 12,709 $ (2,190)
Basic (in shares) 6,802 6,469
Diluted (in shares) 7,209 6,469
Basic (in dollars per share) $ 1.85 $ (0.34)
Diluted (in dollars per share) $ 1.76 $ (0.34)