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Note 17 - Subsequent Events (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 29, 2024
Jan. 31, 2024
Dec. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Common Stock, Dividends, Per Share, Declared (in dollars per share)     $ 1 $ 4 $ 3 $ 2.4
Subsequent Event [Member]            
Common Stock, Dividends, Per Share, Declared (in dollars per share) $ 1.25          
Axign [Member] | Subsequent Event [Member]            
Business Combination, Consideration Transferred   $ 33.8