Subsequent Events - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		9 Months Ended
	Oct. 03, 2016	Sep. 30, 2016	Sep. 30, 2015
Subsequent Event [Line Items]
Net proceeds from issuance of common stock		$ 226	$ 352
Follow-on Public Offering | Subsequent Event
Subsequent Event [Line Items]
Issuance of common stock	4,370,000
Shares issued, price per share	$ 15.00
Net proceeds from issuance of common stock	$ 61,000