Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Summary of Significant Accounting Policies

Summary of potentially dilutive securities excluded from the computation of diluted weighted average shares

	Year ended December 31,
	2016	2015	2014
Convertible preferred stock	—	—	3,704,126
Stock options	1,808,493	1,637,399	542,550
Unvested restricted stock	253,702	398,671	579,882
	2,062,195	2,036,070	4,826,558