Summary of Significant Accounting Policies - Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue Recognition
Revenue	$ 14,047	$ 12,094	$ 24,038	$ 21,581
United States
Revenue Recognition
Revenue	10,824	7,857	18,091	14,350
Europe, Middle East and Africa
Revenue Recognition
Revenue	2,712	3,954	4,774	5,942
Asia Pacific
Revenue Recognition
Revenue	498	221	868	797
Americas other
Revenue Recognition
Revenue	13	62	305	492
Product and service revenue
Revenue Recognition
Revenue	13,947	11,949	23,938	21,211
Product and service revenue | Government
Revenue Recognition
Revenue	11,101	8,812	18,528	14,992
Product and service revenue | Pharmaceutical/Biotechnology
Revenue Recognition
Revenue	2,776	3,106	5,322	6,158
Product and service revenue | Academia and other
Revenue Recognition
Revenue	70	31	88	61
Product and service revenue | Handheld
Revenue Recognition
Revenue	11,095	8,822	18,518	14,994
Product and service revenue | Desktop
Revenue Recognition
Revenue	2,852	3,127	5,420	6,217
Device sales revenue
Revenue Recognition
Revenue	8,643	7,959	14,104	13,042
Device sales revenue | Handheld
Revenue Recognition
Revenue	7,759	6,503	12,349	10,249
Device sales revenue | Desktop
Revenue Recognition
Revenue	884	1,456	1,746	2,793
Recurring revenue
Revenue Recognition
Revenue	5,304	3,990	9,834	8,169
Recurring revenue | Handheld
Revenue Recognition
Revenue	3,336	2,319	6,169	4,745
Recurring revenue | Desktop
Revenue Recognition
Revenue	1,968	1,671	3,674	3,424
Contract revenue
Revenue Recognition
Revenue	$ 100	$ 145	$ 100	$ 370