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DETAILS OF SELECTED BALANCE SHEET ACCOUNTS - Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Inventories:    
Finished goods and purchased products $ 5,586 $ 5,346
Work in process 0 25
Raw materials 1,398 1,097
Total inventories $ 6,984 $ 6,468