Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details)

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Note 6 - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Property, plant and equipment $ 167,640 $ 168,256
Less accumulated depreciation (103,460) (100,916)
Property, plant and equipment, net 64,180 67,340
Land [Member]    
Property, plant and equipment 3,969 3,969
Land Improvements [Member]    
Property, plant and equipment 5,610 5,589
Leasehold Improvements [Member]    
Property, plant and equipment 6,582 6,582
Building [Member]    
Property, plant and equipment 36,732 36,719
Machinery and Equipment [Member]    
Property, plant and equipment 79,370 79,065
Furniture and Fixtures [Member]    
Property, plant and equipment 26,597 25,920
Mobile, Equipment and Other [Member]    
Property, plant and equipment 5,183 5,287
Construction in Progress [Member]    
Property, plant and equipment $ 3,597 $ 5,125