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Note 9 - Financing Arrangements - Effects of Derivative Instruments on Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]        
Interest rate swaps $ (512) $ (397) $ (1,037) $ (588)