Industry, Geographic and Revenue Disaggregation - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 3,588	$ 2,271	$ 8,056	$ 5,827
Accelerate Pheno revenue
Disaggregation of Revenue [Line Items]
Net sales	3,582	2,221	7,980	5,702
Other revenue
Disaggregation of Revenue [Line Items]
Net sales	6	50	76	125
Products
Disaggregation of Revenue [Line Items]
Net sales	3,402	2,143	7,481	5,531
Services
Disaggregation of Revenue [Line Items]
Net sales	186	128	575	296
Domestic
Disaggregation of Revenue [Line Items]
Net sales	3,386	1,757	7,477	4,308
Foreign
Disaggregation of Revenue [Line Items]
Net sales	$ 202	$ 514	$ 579	$ 1,519