Revenue from Contracts with Customers - Schedule of Changes in Contract Liability (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation Of Revenue [Line Items]
Beginning Balance	$ 197,464	$ 599,454
Deferral of revenue	381,904	592,256
Recognition of deferred revenue	(79,549)	(611,047)
Ending Balance	499,819	580,663
Product Revenue
Disaggregation Of Revenue [Line Items]
Beginning Balance	103,580	95,148
Deferral of revenue	80,525	229,927
Recognition of deferred revenue	(57,795)	(214,712)
Ending Balance	126,310	110,363
Custom RUO Assay Design
Disaggregation Of Revenue [Line Items]
Beginning Balance		66,216
Deferral of revenue		300,000
Recognition of deferred revenue		(366,216)
Sample Processing
Disaggregation Of Revenue [Line Items]
Beginning Balance	93,884	438,090
Deferral of revenue	301,379	62,329
Recognition of deferred revenue	(21,754)	(30,119)
Ending Balance	$ 373,509	$ 470,300