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Note 14 - Subsequent Events (Details Textual) - shares
3 Months Ended 4 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Apr. 30, 2023
Stock Repurchased and Retired During Period, Shares (in shares) 72,354 1,005,212  
Common Stock [Member] | Subsequent Event [Member]      
Stock Repurchased and Retired During Period, Shares (in shares)     64,242