Selected Balance Sheet Information - Schedule of Property and equipment, net (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property and equipment, net
Property, Plant and Equipment, Gross, Total	$ 1,456	$ 932
Less: accumulated depreciation and amortization	(1,154)	(831)
Total	302	101
Computers and office equipment
Property and equipment, net
Property, Plant and Equipment, Gross, Total	1,348	827
Leasehold improvements
Property and equipment, net
Property, Plant and Equipment, Gross, Total	94	94
Software
Property and equipment, net
Property, Plant and Equipment, Gross, Total	$ 15	$ 11

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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