Revenue from Contracts with Customers - Schedule of Changes in Contract Liability (Details) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Disaggregation Of Revenue [Line Items]
Beginning Balance	$ 599,454	$ 410,947
Deferral of revenue	871,754	1,262,124
Recognition of deferred revenue	(946,452)	(1,109,443)
Ending Balance	524,756	563,628
Product Revenue
Disaggregation Of Revenue [Line Items]
Beginning Balance	95,148	116,547
Deferral of revenue	335,265	126,425
Recognition of deferred revenue	(325,181)	(172,610)
Ending Balance	105,232	70,362
Custom RUO Assay Design
Disaggregation Of Revenue [Line Items]
Beginning Balance	66,216	50,000
Deferral of revenue	459,385	671,885
Recognition of deferred revenue	(525,601)	(707,641)
Ending Balance		14,244
Sample Processing
Disaggregation Of Revenue [Line Items]
Beginning Balance	438,090	244,400
Deferral of revenue	77,104	463,814
Recognition of deferred revenue	(95,670)	(229,192)
Ending Balance	$ 419,524	$ 479,022