Revenue from Contracts with Customers - Product and Product-Related Service Revenue from Sale of Instruments and Consumables (Details) - USD ($)	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	$ 1,733,546	$ 1,371,169
Product-related services revenue	2,425,106
HTG EdgeSeq
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	263,370	541,144
Product-related services revenue	1,470,176	830,025
HTG EdgeSeq \| Instrument
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	11,358	22,579
HTG EdgeSeq \| Consumables
Disaggregation Of Revenue [Line Items]
Product and product-related services revenue	252,012	518,565
HTG EdgeSeq \| Custom RUO assay design
Disaggregation Of Revenue [Line Items]
Product-related services revenue	127,027	41,287
HTG EdgeSeq \| Sample processing
Disaggregation Of Revenue [Line Items]
Product-related services revenue	$ 1,343,149	$ 788,738

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(a))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(d))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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