Segment Disclosures - Schedule of Geographic Revenue Information (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Revenue	$ 11,246	$ 8,882	$ 11,246	$ 8,882
United States
Segment Reporting Information [Line Items]
Revenue	6,451	5,882
Other
Segment Reporting Information [Line Items]
Revenue	127	79
Americas
Segment Reporting Information [Line Items]
Revenue	6,578	5,961
Germany
Segment Reporting Information [Line Items]
Revenue	1,327	884
Other
Segment Reporting Information [Line Items]
Revenue	2,084	849
EMEA
Segment Reporting Information [Line Items]
Revenue	3,411	1,733
APAC
Segment Reporting Information [Line Items]
Revenue	$ 1,257	$ 1,188