Summary of Accounting Policies - Schedule of Revenues Disaggregated by Segment and Timing of Goods and Services Transferred (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Summary Of Accounting Policies [Line Items]
Total revenue	$ 7,887	$ 6,132	$ 23,306	$ 14,680
Product
Summary Of Accounting Policies [Line Items]
Total revenue	6,186	4,675	18,166	10,690
Product | Point in Time
Summary Of Accounting Policies [Line Items]
Total revenue	5,992	4,549	17,565	10,369
Product | Over Time
Summary Of Accounting Policies [Line Items]
Total revenue	194	126	601	321
Software | Point in Time
Summary Of Accounting Policies [Line Items]
Total revenue	150	163	668	322
Software | Over Time
Summary Of Accounting Policies [Line Items]
Total revenue	$ 1,551	$ 1,294	$ 4,472	$ 3,668