Revenue from Contracts with Customers - Product and Product-Related Service Revenue from Sale of Instruments and Consumables (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	$ 2,074,204	$ 1,963,294	$ 3,509,350	$ 4,188,768
Product and Product-related Services
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	2,074,204	1,728,526	3,509,350	3,716,663
HTG EdgeSeq | Instruments
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	397,205	257,029	621,218	491,654
HTG EdgeSeq | Consumables
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	867,970	781,304	1,472,352	1,327,243
HTG EdgeSeq | Product revenue
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	1,265,175	1,038,333	2,093,570	1,818,897
HTG EdgeSeq | Custom RUO assay design
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue		343,284	48,350	972,466
HTG EdgeSeq | RUO Sample processing
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	809,029	346,909	1,367,430	925,300
HTG EdgeSeq | Product-related services revenue
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	809,029	690,193	1,415,780	1,897,766
HTG EdgeSeq | Product and Product-related Services
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	$ 2,074,204	$ 1,728,526	$ 3,509,350	$ 3,716,663