Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities (Details)

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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Payables and Accruals [Abstract]    
Accrued payroll $ 3,014 $ 1,490
Accrued vacation 4,467 3,966
Accrued bonus 2,927 8,773
Other accrued expenses 12,082 9,603
Total accrued liabilities $ 22,490 $ 23,832