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ACCRUED AND OTHER CURRENT LIABILITIES (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Payables and Accruals [Abstract]    
Payroll and related benefits $ 1,552 $ 1,876
Materials and related purchases 2,596 2,108
Deferred rent 0 142
Professional and consulting fees 1,140 1,820
Other 1,327 541
Total accrued and other current liabilities $ 6,615 $ 6,487