Related Party Transactions

12 Months Ended

Dec. 31, 2017

Related Party Transactions [Abstract]

Related Party Transactions

15.  Related Party Transactions

The spouse of the Company’s former Chief Executive Officer previously provided consulting services to the Company. No payments were made to the spouse in the year ended December 31, 2017. For the years ended December 31, 2016 and 2015, the Company paid $399,000 and $433,000, respectively, to the spouse in consulting fees, which were recorded in Research and Development expenses. As of December 31, 2017 and 2016, the Company had no outstanding liability to the related party. As of July 2017, the spouse is no longer deemed a related party.

One of the founders, a non-employee member of the Company’s Board of Directors, entered into a consulting agreement with the Company in 2014 under which the founder would receive $50,000 per year for a fixed number of hours of consulting and advisory services and receive equity incentive shares, which converted into 43,290 restricted stock awards and 13,852 stock options upon the LLC Conversion, with the vesting contingent on time and performance milestones being achieved. In each of the years ended December 31, 2017, 2016, and 2015, the Company paid $50,000 to the Founder under the consulting agreement. As of December 31, 2017 and 2016, the Company had no outstanding liability to the related party.