Annual report pursuant to Section 13 and 15(d)

Property and Equipment, Net (Details)

v3.22.1
Property and Equipment, Net (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]    
Property and equipment $ 1,218 $ 3,632
Less: accumulated depreciation and amortization (495) (3,079)
Property and equipment, net 723 553
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment $ 940 2,894
Machinery and equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Useful Life 3 years  
Machinery and equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Useful Life 10 years  
Office furniture and equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment $ 50 49
Office furniture and equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Useful Life 3 years  
Office furniture and equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Useful Life 10 years  
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Useful Life 6 years  
Property and equipment $ 228 228
Construction in progress    
Property, Plant and Equipment [Line Items]    
Property and equipment $ 0 $ 461