Summary of Significant Accounting Policies - Disaggregated Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue Recognition
Revenue	$ 42,206	$ 26,894
Americas
Revenue Recognition
Revenue	35,502	22,166
Europe, Middle East and Africa
Revenue Recognition
Revenue	4,460	2,844
Asia Pacific
Revenue Recognition
Revenue	2,244	1,884
Product and service revenue
Revenue Recognition
Revenue	41,108	24,756
Product and service revenue | Government
Revenue Recognition
Revenue	29,755	17,382
Product and service revenue | Pharmaceutical/Biotechnology
Revenue Recognition
Revenue	11,264	7,096
Product and service revenue | Academia
Revenue Recognition
Revenue	89	278
Product and service revenue | Handheld
Revenue Recognition
Revenue	29,160	17,613
Product and service revenue | Desktop
Revenue Recognition
Revenue	11,948	7,143
Device sales
Revenue Recognition
Revenue	33,287	21,269
Consumables and service
Revenue Recognition
Revenue	7,821	3,487
License and contract revenue
Revenue Recognition
Revenue	$ 1,098	$ 2,138