Summary of Operations and Significant Accounting Policies - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Cost	$ 2,896	$ 2,748
Net of Accumulated Amortization	$ 1,237	1,964
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	5 years
Cost	$ 835	835
Net of Accumulated Amortization	$ 470	713
Patents
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	15 years
Cost	$ 1,454	1,306
Net of Accumulated Amortization	$ 426	733
Developed technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	5 years
Cost	$ 607	607
Net of Accumulated Amortization	$ 341	$ 518