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Accrued Liabilities (Tables)
 6 Months Ended
Jun. 30, 2022
Payables and Accruals [Abstract]  
Schedule of Accrued Liabilities
Accrued liabilities as of June 30, 2022 and December 31, 2021 consisted of the following (table in thousands):
June 30,
2022		December 31,
2021
Accrued Research & Development Expense$110 $366 
Accrued Compensation and Benefits2,439 1,791 
Accrued Unvouchered Receipts385 796 
Accrued Workers Compensation172 382 
Other Accrued Liabilities1,554 1,755 
Total Accrued Liabilities$4,660 $5,090