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Note 11 - Net Income Per Share - Loss Per Basic and Diluted Weighted Average Common Share Outstanding for Continuing and Discontinued Operations (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Net income $ 9,673 $ 2,131 $ 13,232 $ 4,306
Basic (in shares) 9,918 9,861 9,900 9,837
Effect of potentially dilutive common shares (in shares) [1] 50 54 71 83
Diluted weighted-average common shares outstanding (in shares) 9,968 9,915 9,971 9,920
Basic (in dollars per share) $ 0.98 $ 0.22 $ 1.34 $ 0.44
Diluted (in dollars per share) $ 0.97 $ 0.21 $ 1.33 $ 0.43
[1] There were no antidilutive shares for the years ended December 31, 2021, 2020 or 2019.