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Note 10 - 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
Mar. 31, 2023
Mar. 31, 2022
Net income $ 2,362 $ 3,559
Basic (in shares) 9,940 9,881
Effect of potentially dilutive common shares (in shares) [1] 147 92
Diluted weighted-average common shares outstanding (in shares) 10,087 9,973
Basic (in dollars per share) $ 0.24 $ 0.36
Diluted (in dollars per share) $ 0.23 $ 0.36
[1] The weighted-average number of antidilutive shares not included in the computation of diluted net income per share was approximately 16,000 for the three months ended March 31, 2022. There were no antidilutive shares for the three months ended March 31, 2023.