Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - 9 months ended Sep. 30, 2016 - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficit [Member]	Total
Balance, at beginning at Dec. 31, 2015	$ 21	$ 313,446	$ (97)	$ (292,999)	$ 20,371
Balance, at beginning (in shares) at Dec. 31, 2015	20,629,957
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation		344			344
Equity-based compensation (in shares)	17,498
Shares sold at the market		174			174
Shares sold at the market (in shares)	114,394
Common stock issuance	$ 3	4,517			4,520
Common stock issuance (in shares)	3,333,334
Other issuances
Other issuances (in shares)	10,386
Redeemable warrants		(2,617)			(2,617)
Net comprehensive loss			168	(6,329)	(6,161)
Balance, at end at Sep. 30, 2016	$ 24	$ 315,864	$ 71	$ (299,328)	$ 16,631
Balance, at end (in shares) at Sep. 30, 2016	24,105,569