Revenue from Contract with Customer - Schedule of Changes in Contract Liability (Details)	6 Months Ended
	Jun. 30, 2018 USD ($)
Disaggregation Of Revenue [Line Items]
Beginning Balance	$ 837,885
Deferral of revenue	465,311
Recognition of deferred revenue	(854,479)
Ending Balance	448,717
Product Revenue
Disaggregation Of Revenue [Line Items]
Beginning Balance	39,426
Deferral of revenue	90,353
Recognition of deferred revenue	(91,797)
Ending Balance	37,982
Custom RUO assay design
Disaggregation Of Revenue [Line Items]
Beginning Balance	197,606
Deferral of revenue	231,500
Recognition of deferred revenue	(301,224)
Ending Balance	127,882
Sample processing
Disaggregation Of Revenue [Line Items]
Beginning Balance	354,911
Deferral of revenue	72,540
Recognition of deferred revenue	(262,723)
Ending Balance	164,728
Collaborative Development Services
Disaggregation Of Revenue [Line Items]
Beginning Balance	245,942
Deferral of revenue	70,918
Recognition of deferred revenue	(198,735)
Ending Balance	$ 118,125