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Note 16 - Accumulated Other Comprehensive Loss - Reclassification of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Cost of sales |  |  |  |  |  |  |  |  | $ 289,059 | $ 235,388 | $ 232,133
Other income (loss) |  |  |  |  |  |  |  |  | 328 | 953 | 4,383
Tax (expense) benefit |  |  |  |  |  |  |  |  | (3,635) | (6,584) | (4,738)
Net income | $ 2,271 | $ 4,946 | $ 2,131 | $ 2,175 | $ 5,221 | $ 7,267 | $ 5,998 | $ 564 | 11,523 | 19,050 | 27,902
Revenue from Contract with Customer, Including Assessed Tax | $ 102,547 | $ 84,643 | $ 73,812 | $ 72,311 | $ 69,381 | $ 77,632 | $ 69,971 | $ 68,923 | 333,313 | 285,907 | 279,317
Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 24 | (259) | (15)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |  |  |  |  |  |  |  |  |
Cost of sales |  |  |  |  |  |  |  |  | (7) | (16) | (11)
Other income (loss) |  |  |  |  |  |  |  |  | 110 | 46 | (15)
Tax (expense) benefit |  |  |  |  |  |  |  |  | (25) | (8) | 4
Net income |  |  |  |  |  |  |  |  | 78 | 22 | (22)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] |  |  |  |  |  |  |  |  |  |  |
Tax (expense) benefit |  |  |  |  |  |  |  |  | 18 | 97 | 2
Net income |  |  |  |  |  |  |  |  | (54) | (281) | 7
Revenue from Contract with Customer, Including Assessed Tax |  |  |  |  |  |  |  |  | $ (72) | $ (378) | $ 5

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