COVID-19 (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Jul. 27, 2021	Apr. 20, 2020
Debt Instrument [Line Items]
Gain on settlement of note payable and licensed technology		$ 3,345	$ 0
Payroll tax payments deferred under the CARES Act		400
Payroll tax payments under the CARES Act	$ 200
Promissory Note | PPP Loan
Debt Instrument [Line Items]
Face amount					$ 3,300
Approved amount				$ 3,300
Gain on settlement of note payable and licensed technology		$ 3,300