Related Party Transactions - Additional Information (Details) - USD ($)	1 Months Ended	12 Months Ended
Apr. 30, 2017	Dec. 31, 2018
Quan Venture Fund I, L.P.
Related Party Transaction [Line Items]
Cash consideration for investment disposed	$ 500,000
Gain/loss recognized upon disposal	$ 0
Research and development \| Qiagen (Suzhou) Translational Medicine Co., Ltd.
Related Party Transaction [Line Items]
Transactions between its related party		$ 125,679

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration