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Other Current Liabilities (Details) - Schedule of other current liabilities - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Schedule of other current liabilities [Abstract]    
Accrued research and development $ 183 $ 289
Accrued compensation 1,091 2,211
Accrued vacation 354 276
Operating lease liabilities, current portion 163  
Other 191 131
Total other current liabilities $ 1,982 $ 2,907