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Note 14 - Share-based Compensation - Share-based Compensation Expense (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Share-based compensation expense $ 1,563 $ 1,541
Basic earnings per share (in dollars per share) $ 0.08 $ 0.08
Diluted earnings per share (in dollars per share) $ 0.08 $ 0.08
Cost of Sales [Member]    
Share-based compensation expense $ 129 $ 130
Selling, General and Administrative Expenses [Member]    
Share-based compensation expense $ 1,434 $ 1,411