Revenue from Contracts with Customers - Product and Product-Related Service Revenue from Sale of Instruments and Consumables (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	$ 2,225,474	$ 3,202,825
Product and Product-related Services
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	1,988,137	2,662,505
HTG EdgeSeq | Instruments
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	234,625	140,416
HTG EdgeSeq | Consumables
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	545,939	400,818
HTG EdgeSeq | Product revenue
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	780,564	541,234
HTG EdgeSeq | Custom RUO assay design
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	629,182	367,859
HTG EdgeSeq | RUO Sample processing
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	578,391	1,753,412
HTG EdgeSeq | Product-related services revenue
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	1,207,573	2,121,271
HTG EdgeSeq | Product and Product-related Services
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	$ 1,988,137	$ 2,662,505