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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

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