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Note 8 - Property, Plant and Equipment (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Depreciation | $ 5,000 | $ 5,700 | $ 10,200 | $ 11,700
Interest Paid, Capitalized, Investing Activities | 0 | $ 200 |  |
Asset Impairment Charges | $ 0 |  |  |

X
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