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Note 2 - Acquisitions - Pro Forma (Details) - Metal-Fab [Member] $ / shares in Units, $ in Thousands | 3 Months Ended
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Mar. 31, 2022 USD ($) $ / shares
Net sales | $ | $ 719,202
Net income (loss) | $ | $ 36,943
Basic earnings per share (in dollars per share) | $ / shares | $ 3.20
Diluted earnings per share (in dollars per share) | $ / shares | $ 3.20
Historical OSI [Member] |
Net sales | $ | $ 696,333
Net income (loss) | $ | $ 37,302
Basic earnings per share (in dollars per share) | $ / shares | $ 3.23
Diluted earnings per share (in dollars per share) | $ / shares | $ 3.23
Historical [Member] |
Net sales | $ | $ 22,685
Net income (loss) | $ | $ 4,042
Basic earnings per share (in dollars per share) | $ / shares | $ 0.35
Diluted earnings per share (in dollars per share) | $ / shares | $ 0.35
Pro Forma [Member] |
Net sales | $ | $ 184
Net income (loss) | $ | $ (4,401)
Basic earnings per share (in dollars per share) | $ / shares | $ (0.38)
Diluted earnings per share (in dollars per share) | $ / shares | $ (0.38)

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