Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 07, 2015	Oct. 31, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net loss available to common stockholders			$ 5,399	$ (4,064)	$ 4,030	$ (3,488)
Shares outstanding:
Basic (in shares)			46,516,614	26,075,022	46,509,369	24,242,791
Diluted (in shares)			46,763,589	26,075,022	46,620,959	24,242,791
Basic (in dollars per share)			$ 0.12	$ (0.16)	$ 0.09	$ (0.14)
Diluted (in dollars per share)			$ 0.12	$ (0.16)	$ 0.09	$ (0.14)
Maximum
Common stock offered to underwriters	$ 80,000
Forecast
Proceeds from issuance of common stock		$ 60,000