Product Warranty Obligations (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Product Warranty Obligations
Warranty term	1 year
Warranty reserve	$ 662	$ 723
Reconciliation of the change in estimated warranty liabilities
Balance at beginning of the period	723	646
Provision for warranties during the period (reversals from prior period)	(53)	781
Settlements made during the period	(8)	(704)
Balance at end of the period	$ 662	$ 723