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, 2023
Dec. 31, 2022
Property, plant and equipment $ 160,486 $ 161,096
Less accumulated depreciation (93,025) (92,436)
Net property, plant and equipment 67,461 68,660
Land [Member]    
Property, plant and equipment 3,969 3,969
Land Improvements [Member]    
Property, plant and equipment 5,431 5,431
Leasehold Improvements [Member]    
Property, plant and equipment 6,028 5,844
Building [Member]    
Property, plant and equipment 36,031 35,858
Machinery and Equipment [Member]    
Property, plant and equipment 73,921 75,190
Furniture and Fixtures [Member]    
Property, plant and equipment 25,018 24,605
Mobile, Equipment and Other [Member]    
Property, plant and equipment 5,142 4,927
Construction in Progress [Member]    
Property, plant and equipment $ 4,946 $ 5,272