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Note 9 - Earnings Per Share - Schedule of Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Apr. 30, 2025
Apr. 30, 2024
Basic (in shares) 7,983 7,906
Dilutive effect of equity compensation plans (in shares) 96 150
Weighted average common shares outstanding assuming full dilution (in shares) 8,079 8,056
Stock options and restricted stock not included in the computation of diluted earnings per share of common stock because the option exercise prices or grant date prices exceeded the average market prices of the common shares (in shares) 0 32
Stock options and restricted stock with exercise prices or grant date prices below the average market prices (in shares) 96 150
Net income attributable to common stock $ 4,952 $ 1,443
Basic (in dollars per share) $ 0.62 $ 0.18
Diluted (in dollars per share) $ 0.61 $ 0.18