Geographic and Revenue Disaggregation - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 3,122	$ 3,588	$ 8,439	$ 8,056
Accelerate Pheno revenue
Disaggregation of Revenue [Line Items]
Net sales	3,084	3,582	8,324	7,980
Other revenue
Disaggregation of Revenue [Line Items]
Net sales	38	6	115	76
Products
Disaggregation of Revenue [Line Items]
Net sales	2,773	3,402	7,474	7,481
Services
Disaggregation of Revenue [Line Items]
Net sales	349	186	965	575
Domestic
Disaggregation of Revenue [Line Items]
Net sales	2,874	3,386	7,406	7,477
Foreign
Disaggregation of Revenue [Line Items]
Net sales	$ 248	$ 202	$ 1,033	$ 579