Related Party	12 Months Ended
Dec. 31, 2018
Related Party [Abstract]
Related Party	12. Related Party On March 22, 2018, the Company completed a registered direct offering of 2,743,640 shares of its common stock at a price of $1.10 per share, including 181,820 shares sold to One Funds Management Limited as Trustee for Asia Pacific Healthcare Fund II (“One Funds”). Two members of the Company’s board of directors are affiliated with One Funds. The Company incurred travel reimbursement expenses of approximately $50,000 and $22,000 payable to Biosciences Managers during the year ended December 31, 2018 and 2017, respectively. Two members of the Company’s board of directors serve as managing directors of Biosciences Managers. During the year ended December 31, 2017, the Company issued 110,772 shares of common stock to One Funds Management Limited as Trustee for One Funds in connection with the CSIA Amendment (See Note 9). Two members of the Company’s board of directors are affiliated with One Funds.

Related Party

12 Months Ended

Dec. 31, 2018

12. Related Party

On March 22, 2018, the Company completed a registered direct offering of 2,743,640 shares of its common stock at a price of $1.10 per share, including 181,820 shares sold to One Funds Management Limited as Trustee for Asia Pacific Healthcare Fund II (“One Funds”). Two members of the Company’s board of directors are affiliated with One Funds.

The Company incurred travel reimbursement expenses of approximately $50,000 and $22,000 payable to Biosciences Managers during the year ended December 31, 2018 and 2017, respectively. Two members of the Company’s board of directors serve as managing directors of Biosciences Managers.

During the year ended December 31, 2017, the Company issued 110,772 shares of common stock to One Funds Management Limited as Trustee for One Funds in connection with the CSIA Amendment (See Note 9). Two members of the Company’s board of directors are affiliated with One Funds.