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Note 3 - Income (Loss) Per Share - Basic and Diluted Income (Loss) Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Net income (loss) $ (123,332) $ (10,059)
Weighted average shares outstanding (in shares) 79,709,212 78,139,517
Weighted average restricted shares vested not delivered (in shares) 1,703,383 1,837,796
Total basic weighted average shares outstanding (in shares) 81,412,595 79,977,313
Dilutive effect of assumed conversion of restricted stock units (in shares) 0 0
Total diluted weighted average shares outstanding (in shares) 81,412,595 79,977,313
Basic (in dollars per share) $ (1.51) $ (0.13)
Diluted (in dollars per share) $ (1.51) $ (0.13)
Restricted Stock Units (RSUs) [Member]    
Dilutive effect of assumed conversion of restricted stock units (in shares) 0 0