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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Payables and Accruals [Abstract]    
Accrued Research & Development Expense $ 0 $ 43
Accrued Compensation and Benefits 1,804 2,568
Accrued Unvouchered Receipts 358 585
Accrued Workers Compensation 303 306
Other Accrued Liabilities 1,894 4,200
Total Accrued Liabilities $ 4,359 $ 7,702