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Balance Sheets Details - Inventories (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Schedule of Inventory Components    
Raw materials $ 108 $ 108
Work-in-process 6 91
Finished goods 1,938 1,830
Total Inventories 2,052 2,029
Inventory reserves $ 1,200 $ 1,200