Commitments (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 28, 2022	Dec. 31, 2022	Dec. 31, 2021
Commitments
Operating lease liability	$ 1,300	$ 939
Right-of-use asset	$ 1,300	948	$ 394
Estimated incremental borrowing rate	7.49%
Future minimum payments
2023		608
2024		395
Total lease payments		1,003
Less: imputed interest		(64)
Total operating lease liabilities	$ 1,300	939
Operating leases
Sublease expense		800	700
Cash payments towards sublease		$ 800	$ 700
Letter of Credit
Operating leases
Sublease expense	$ 200