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Note 9 - Property, Plant, and Equipment | 12 Months Ended
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Dec. 31, 2023
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] |
9. | PROPERTY, PLANT, AND EQUIPMENT
Property, plant, and equipment consisted of the following at December 31:
|  | 2023 |  |  | 2022 |
Land and land improvements |  | $ | 6,044 |  |  | $ | 5,923 |
Buildings and building equipment |  |  | 27,182 |  |  |  | 27,226 |
Machinery and equipment |  |  | 188,794 |  |  |  | 183,999 |
Construction in progress |  |  | 1,809 |  |  |  | 771 |
Accumulated depreciation |  |  | (151,118 | ) |  |  | (140,978 | )
Total |  | $ | 72,711 |  |  | $ | 76,941 |
Depreciation expense totaled $10,348, $10,454, and $10,452 for the years ended December 31, 2023, 2022 and 2021, respectively.

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