Revenue from Contracts with Customers - Schedule of Changes in Contract Liability (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disaggregation Of Revenue [Line Items]
Beginning Balance	$ 410,947	$ 837,885
Deferral of revenue	1,720,982	907,742
Customer deposits		131,864
Recognition of deferred revenue	(1,532,475)	(1,466,544)
Ending Balance	599,454	410,947
Product Revenue
Disaggregation Of Revenue [Line Items]
Beginning Balance	116,547	39,426
Deferral of revenue	218,802	190,703
Customer deposits		131,864
Recognition of deferred revenue	(240,201)	(245,446)
Ending Balance	95,148	116,547
Custom RUO Assay Design
Disaggregation Of Revenue [Line Items]
Beginning Balance	50,000	197,606
Deferral of revenue	972,267	448,580
Recognition of deferred revenue	(956,051)	(596,186)
Ending Balance	66,216	50,000
Sample Processing
Disaggregation Of Revenue [Line Items]
Beginning Balance	244,400	490,536
Deferral of revenue	529,913	197,541
Recognition of deferred revenue	(336,223)	(443,677)
Ending Balance	$ 438,090	244,400
Collaborative Development Services
Disaggregation Of Revenue [Line Items]
Beginning Balance		110,317
Deferral of revenue		70,918
Recognition of deferred revenue		$ (181,235)