Debt Facilities - Schedule of Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Outstanding loans payable	$ 36,750	$ 40,833	$ 52,193
Less current maturities, net of debt issuance	15,998	15,998	9,988
Less unamortized debt issuance costs, non-current portion	754	838	1,173
Total loans payable, net of unamortized debt issuance costs and current term loan payable	19,998	23,997	41,032
Term Loan
Debt Instrument [Line Items]
Outstanding loans payable	$ 36,750	40,833	49,000
PPP Small Business Loan
Debt Instrument [Line Items]
Outstanding loans payable		$ 0	$ 3,193

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt issuance costs classified as current. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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