Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment (Details)

v3.21.1
Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross $ 105,966 $ 106,150
Less: accumulated depreciation and amortization (72,489) (71,054)
Property, plant and equipment, net 33,477 35,096
Land    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross 3 3
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross 2,955 2,939
Buildings    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross 84 84
Machinery, fixtures and equipment    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross 100,737 100,352
Construction-in-progress    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment, gross $ 2,187 $ 2,772