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, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	$ 1,777,098	$ 5,404,793	$ 5,965,866	$ 14,403,938
Product and Product-related Services
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	1,701,068	4,311,043	5,417,731	11,397,916
HTG EdgeSeq | Instruments
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	71,742	414,491	563,396	1,100,606
HTG EdgeSeq | Consumables
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	764,605	1,058,386	2,091,848	2,218,674
HTG EdgeSeq | Product revenue
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	836,347	1,472,877	2,655,244	3,319,280
HTG EdgeSeq | Custom RUO assay design
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	238,502	2,129,251	1,210,968	3,978,428
HTG EdgeSeq | RUO Sample processing
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	626,219	708,915	1,551,519	4,100,208
HTG EdgeSeq | Product-related services revenue
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	864,721	2,838,166	2,762,487	8,078,636
HTG EdgeSeq | Product and Product-related Services
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	$ 1,701,068	$ 4,311,043	$ 5,417,731	$ 11,397,916