Enterprise-Wide Information - Property, Plant and Equipment, Net of Accumulated Depreciation (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 9,849	$ 9,842
US
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	6,755	6,105
Korea
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	1,913	2,367
Japan
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	644	799
Canada
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	232	280
Germany
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	139	210
Other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 166	$ 81