Revenue from Contracts with Customers - Product and Product-Related Service Revenue from Sale of Instruments and Consumables (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	$ 21,503,894	$ 14,759,567
Product and Product-related Services
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	9,121,390	6,797,255
HTG EdgeSeq | Instrument
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	351,885	385,143
HTG EdgeSeq | Consumables
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	1,964,499	1,463,347
HTG EdgeSeq | Product revenue
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	2,316,384	1,848,490
HTG EdgeSeq | Custom RUO assay design
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	964,241	419,515
HTG EdgeSeq | Sample processing
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	5,840,765	4,529,250
HTG EdgeSeq | Product-related services revenue
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	6,805,006	4,948,765
HTG EdgeSeq | Product and Product-related Services
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	$ 9,121,390	$ 6,797,255