Revenue from Contracts with Customers - Product and Product-Related Service Revenue from Sale of Instruments and Consumables (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	$ 2,520,410	$ 1,777,098	$ 6,029,760	$ 5,965,866
Product and Product-related Services
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	2,520,410	1,701,068	6,029,760	5,417,731
HTG EdgeSeq | Instruments
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	407,130	71,742	1,028,348	563,396
HTG EdgeSeq | Consumables
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	793,542	764,605	2,265,894	2,091,848
HTG EdgeSeq | Product revenue
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	1,200,672	836,347	3,294,242	2,655,244
HTG EdgeSeq | Custom RUO assay design
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue		238,502	48,350	1,210,968
HTG EdgeSeq | RUO Sample processing
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	1,319,738	626,219	2,687,168	1,551,519
HTG EdgeSeq | Product-related services revenue
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	1,319,738	864,721	2,735,518	2,762,487
HTG EdgeSeq | Product and Product-related Services
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	$ 2,520,410	$ 1,701,068	$ 6,029,760	$ 5,417,731