Term Notes - Schedule of Current and Noncurrent Debt and Net Discount or Premium Balances (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument, Periodic Payment [Abstract]
Principal amount of term note	$ 16,500	$ 16,500
Net premium associated with accretion of final payment, and other debt issuance costs	783	630
Term note, current and noncurrent	17,283	17,130
Less term note, current portion	(8,250)	(5,500)
Term note, noncurrent portion	$ 9,033	$ 11,630

Face (par) amount of debt instrument at time of issuance.

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