Enterprise-Wide Information - Property, Plant and Equipment, Net of Accumulated Depreciation (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 2,801	$ 3,108
UNITED STATES
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	2,550	2,838
Germany
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	120	144
Other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 131	$ 126