Geographic and Revenue Disaggregation - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 2,798	$ 2,125	$ 5,316	$ 4,468
Accelerate Pheno revenue
Disaggregation of Revenue [Line Items]
Net sales	2,767	2,093	5,240	4,398
Other revenue
Disaggregation of Revenue [Line Items]
Net sales	31	32	76	70
Products
Disaggregation of Revenue [Line Items]
Net sales	2,483	1,937	4,700	4,079
Services
Disaggregation of Revenue [Line Items]
Net sales	315	188	616	389
Domestic
Disaggregation of Revenue [Line Items]
Net sales	2,386	2,003	4,532	4,091
Foreign
Disaggregation of Revenue [Line Items]
Net sales	$ 412	$ 122	$ 784	$ 377