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ACCRUED EXPENSES (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Payables and Accruals [Abstract]    
Accrued vacation $ 293 $ 238
Accrued salaries and bonus 601 353
Vendor accruals 87 36
Other accrued expense 132 100
Total accrued expenses $ 1,113 $ 727