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    
Total property, plant and equipment $ 140,553 $ 138,762
Less accumulated depreciation (76,151) (74,442)
Net property, plant and equipment 64,402 64,320
Land    
Property, plant and equipment    
Total property, plant and equipment 2,378 2,378
Land improvements    
Property, plant and equipment    
Total property, plant and equipment 4,830 4,830
Leasehold Improvements    
Property, plant and equipment    
Total property, plant and equipment 4,087 4,087
Buildings    
Property, plant and equipment    
Total property, plant and equipment 29,584 29,580
Machinery and equipment    
Property, plant and equipment    
Total property, plant and equipment 61,459 61,154
Furniture and fixtures    
Property, plant and equipment    
Total property, plant and equipment 20,144 19,782
Mobile equipment and other    
Property, plant and equipment    
Total property, plant and equipment 5,208 5,200
Construction-in-process    
Property, plant and equipment    
Total property, plant and equipment $ 12,863 $ 11,751