Stock Based Compensation (Warrants Activity) (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($) $ / shares shares
Class of Warrant or Right Outstanding [Roll Forward]
Expired (shares) | shares	(55,125)
Warrants
Class of Warrant or Right Outstanding [Roll Forward]
Outstanding at the beginning of the period (shares) | shares	2,051,475
Outstanding at the end of the period (shares) | shares	1,996,350
Vested (shares) | shares	1,613,017
Class of Warrant or Right Outstanding Weighted Average Exercise Price [Roll Forward]
Outstanding at the beginning of the period (usd per share) | $ / shares	$ 3.46
Expired (usd per share) | $ / shares	4.08
Outstanding at the end of the period (usd per share) | $ / shares	3.44
Vested (usd per share) | $ / shares	$ 3.22
Weighted average remaining contractual term	4 years 1 month
Aggregate intrinsic value | $	$ 170
Weighted average remaining contract life, vested	3 years 2 months
Aggregate intrinsic value, vested | $	$ 170