Segment and Geographic Information - Assets by Geographic Area (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting, Asset Reconciling Item [Line Items]
Property and equipment, net	$ 1,617	$ 2,115
Operating lease right-of-use assets	1,679	2,497
Total	3,296	4,612
United States
Segment Reporting, Asset Reconciling Item [Line Items]
Property and equipment, net	1,344	1,690
Operating lease right-of-use assets	974	1,528
Total	2,318	3,218
Sweden
Segment Reporting, Asset Reconciling Item [Line Items]
Property and equipment, net	138	152
Operating lease right-of-use assets	479	632
Total	617	784
Other
Segment Reporting, Asset Reconciling Item [Line Items]
Property and equipment, net	135	273
Operating lease right-of-use assets	226	337
Total	$ 361	$ 610