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Related Party Transactions | 12 Months Ended
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Dec. 31, 2017
Related Party Transactions [Abstract] |
Related Party Transactions |
10. | Related party transactions
The table below sets forth the major related party and the relationship with the Group as of December 31, 2017:
Company Name |  | Relationship with the Group
Quan Venture Fund I, L.P. |  | Significantly influenced by Samantha Du, founder, chairman and CEO of the Company
Qiagen (Suzhou) Translational Medicine Co., Ltd. |  | Significant influence held by Samantha Du’s immediate family
The Group paid expenditures to its related party:
Research and development expenditures |  | Year ended December 31, |
|  | 2015 |  |  | 2016 |  |  | 2017 |
|  | $ |  |  | $ |  |  | $ |
Qiagen (Suzhou) Translational Medicine Co. Ltd. |  |  | 96,656 |  |  |  | — |  |  |  | — |
On April 30, 2017, the Group disposed its investment in a cost method investee to Quan Venture Fund I, L.P. for a cash consideration of $500,000 and no gain/loss was recognized upon disposal.

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- Definition The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -URI http://asc.fasb.org/topic&trid=2122745 + Details
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