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Fixed Assets - Summary (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Property, Plant and Equipment [Line Items]    
Fixed assets, gross $ 759 $ 1,132
Less: Accumulated depreciation and amortization (697) (1,055)
Fixed assets, net, after accumulated amortization 62 77
Operating lease ROU assets, net 322 453
Total 384 530
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Machinery and equipment 390 722
Office furniture and equipment    
Property, Plant and Equipment [Line Items]    
Office furniture and equipment 177 218
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Leasehold improvements $ 192 $ 192