Subsequent Events (Details) - Subsequent Events - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		2 Months Ended
	Feb. 29, 2016	Jan. 31, 2016	Feb. 29, 2016
Underwritten public offering
Subsequent Events
Proceeds from the issuance of common stock, net			$ 37.3
Underwritten public offering | Common stock
Subsequent Events
Common stock issued (in shares)		5,511,812	6,338,583
Share price (in dollars per share)		$ 6.35
Underwriter purchase option | Common stock
Subsequent Events
Common stock issued (in shares)	826,771
Share price (in dollars per share)	$ 6.35		$ 6.35