Annual report pursuant to Section 13 and 15(d)

PROPERTY AND EQUIPMENT, NET (Details)

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PROPERTY AND EQUIPMENT, NET (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment    
Property and equipment, gross $ 27,280 $ 26,733
Less accumulated depreciation (19,930) (18,894)
Property and equipment, net 7,350 7,839
Tooling and equipment    
Property, Plant and Equipment    
Property and equipment, gross 13,530 13,465
Furniture and other equipment    
Property, Plant and Equipment    
Property and equipment, gross $ 7,928 7,379
Useful life (in years) 5 years  
Computer software    
Property, Plant and Equipment    
Property and equipment, gross $ 1,998 2,378
Useful life (in years) 5 years  
Leasehold improvements    
Property, Plant and Equipment    
Property and equipment, gross $ 3,632 3,314
Equipment under capital lease    
Property, Plant and Equipment    
Property and equipment, gross $ 192 $ 197
Useful life (in years) 5 years  
Minimum    
Property, Plant and Equipment    
Useful life (in years) 3 years  
Minimum | Tooling and equipment    
Property, Plant and Equipment    
Useful life (in years) 7 years  
Minimum | Leasehold improvements    
Property, Plant and Equipment    
Useful life (in years) 3 years  
Maximum    
Property, Plant and Equipment    
Useful life (in years) 15 years  
Maximum | Tooling and equipment    
Property, Plant and Equipment    
Useful life (in years) 15 years  
Maximum | Leasehold improvements    
Property, Plant and Equipment    
Useful life (in years) 6 years