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Note 6 - Intangible Assets (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Amortization of Intangible Assets $ 56,000 $ 119,000 $ 117,000 $ 238,000