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Note 13 - Stock Repurchase Program (Details Textual) - Common Stock [Member] - USD ($)
6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Stock Repurchased and Retired During Period, Shares (in shares) 44,349 2,165
Stock Repurchased and Retired During Period, Value $ 2,482,000 $ 146,000