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Note 10 - Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Balance | $ 340,360 | $ 318,274
Net current period other comprehensive income | 55 | (127)
Balance | 342,614 | 321,077
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |
Balance | (1,193) | (1,532)
Other comprehensive income before reclassifications | 18 | 26
Amounts reclassified from Accumulated other comprehensive loss | 3 | 3
Net current period other comprehensive income | 21 | 29
Balance | (1,172) | (1,503)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] | Foreign Exchange Forward [Member] |  |
Balance | (13) | 94
Other comprehensive income before reclassifications | 8 | (10)
Amounts reclassified from Accumulated other comprehensive loss | 2 | 32
Net current period other comprehensive income | 10 | 22
Balance | (3) | 116
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] | Interest Rate Swap [Member] |  |
Balance | 246 | 649
Other comprehensive income before reclassifications | 115 | (59)
Amounts reclassified from Accumulated other comprehensive loss | (91) | (119)
Net current period other comprehensive income | 24 | (178)
Balance | 270 | 471
AOCI Attributable to Parent [Member] |  |
Balance | (960) | (789)
Other comprehensive income before reclassifications | 141 | (43)
Amounts reclassified from Accumulated other comprehensive loss | (86) | (84)
Net current period other comprehensive income | 55 | (127)
Balance | $ (905) | $ (916)

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