Annual report pursuant to Section 13 and 15(d)

Property, Plant and Equipment (Details)

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Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross $ 117,444 $ 106,150
Less accumulated depreciation and amortization (73,724) (71,054)
Property, plant and equipment, net 43,720 35,096
Depreciation expense 7,547 7,572
Land    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross 723 3
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross 4,641 2,939
Buildings    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross 53 84
Machinery, fixtures and equipment    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross 110,127 100,352
Construction-in-progress    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross $ 1,900 $ 2,772