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Note 7 - Property and Equipment - Property and Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Property and equipment, at cost $ 413,396 $ 434,579
Financing lease 2,710 3,582
Accumulated depreciation (266,340) (277,379)
Net property and equipment $ 147,056 157,200
Minimum [Member]    
Depreciable lives (Year) 2 years  
Maximum [Member]    
Depreciable lives (Year) 30 years  
Land [Member]    
Property and equipment, at cost $ 15,238 15,698
Land Improvements [Member]    
Property and equipment, at cost $ 3,780 3,742
Land Improvements [Member] | Minimum [Member]    
Depreciable lives (Year) 5 years  
Land Improvements [Member] | Maximum [Member]    
Depreciable lives (Year) 10 years  
Building and Building Improvements [Member]    
Property and equipment, at cost $ 141,979 148,507
Building and Building Improvements [Member] | Minimum [Member]    
Depreciable lives (Year) 7 years  
Building and Building Improvements [Member] | Maximum [Member]    
Depreciable lives (Year) 30 years  
Machinery and Equipment [Member]    
Property and equipment, at cost $ 210,410 222,802
Machinery and Equipment [Member] | Minimum [Member]    
Depreciable lives (Year) 2 years  
Machinery and Equipment [Member] | Maximum [Member]    
Depreciable lives (Year) 15 years  
Furniture and Fixtures [Member]    
Property and equipment, at cost $ 6,229 6,699
Furniture and Fixtures [Member] | Minimum [Member]    
Depreciable lives (Year) 3 years  
Furniture and Fixtures [Member] | Maximum [Member]    
Depreciable lives (Year) 7 years  
Software and Software Development Costs [Member]    
Property and equipment, at cost $ 25,053 28,977
Depreciable lives (Year) 5 years  
Software and Software Development Costs [Member] | Minimum [Member]    
Depreciable lives (Year) 2 years  
Software and Software Development Costs [Member] | Maximum [Member]    
Depreciable lives (Year) 5 years  
Vehicles [Member]    
Property and equipment, at cost $ 3,054 2,504
Vehicles [Member] | Minimum [Member]    
Depreciable lives (Year) 2 years  
Vehicles [Member] | Maximum [Member]    
Depreciable lives (Year) 5 years  
Construction in Progress [Member]    
Property and equipment, at cost $ 4,943 $ 2,068