Accrued Liabilities - Schedule of Current Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Accrued liabilities, current
Severance costs	$ 2,584	$ 2,581
Loss on purchase commitments	0	1,750
Payroll and benefits	993	1,054
Legal costs	885	1,013
Contingent liability for earn-out provision	702	608
Deferred revenue, current	567	528
Taxes other than income taxes	304	241
Other	712	1,221
Total current accrued liabilities	$ 6,747	$ 8,996