Accrued Liabilities (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2022

Dec. 31, 2021

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities

A summary of the components of Accrued liabilities as of March 31, 2022 and December 31, 2021 is as follows:

	As of
	March 31, 2022		December 31, 2021
	(In thousands)
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

A summary of the components of Accrued liabilities as of December 31, 2021, and December 31, 2020 is as follows:

	As of
	December 31, 2021		December 31, 2020
	(In thousands)
Accrued payroll	$	1,490	$	1,035
Accrued vacation	3,966		3,308
Accrued bonus	8,773		6,568
Other accrued expenses	9,561		7,508
Total accrued liabilities	$	23,790	$	18,419