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Note 3 - Acquisition - Proforma Information (Details) - Alfamation [Member] - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Revenue | $ 135,753 | $ 150,548
Net earnings | $ 2,848 | $ 11,560
Diluted earnings per share (in dollars per share) | $ 0.23 | $ 0.97

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