Share-Based Compensation - Option Roll-Forward (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Stock Option Activity [Roll Forward]
Outstanding balance at December 31, 2015 (in shares)	4,398,700
Options granted (in shares)	800,000
Options exercised (in shares)	0	0
Options forfeited and expired (in shares)	(165,000)
Outstanding balance at March 31, 2016 (in shares)	5,033,700.0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding balance (weighted average exercise price) at December 31, 2015 (in dollars per share)	$ 0.43
Granted (weighted average exercise price) (in dollars per share)	0.15
Exercised (weighted averaged exercise price) (in dollars per share)	0.00
Forfeited and Expired (weighted average exercise price) (in dollars per share)	0.59
Outstanding balance (weighted average exercise price) at March 31, 2016 (in dollars per share)	$ 0.38
Weighted Average Remaining Contractual Life, options outstanding	8 years 4 months 28 days
Aggregate Intrinsic Value of options	$ 0
Number of options exercisable at March 31, 2016 (in shares)	2,104,389
Weighted average exercise price of options exercisable at March 31, 2016 (in dollars per share)	$ 0.51
Weighted Average Remaining Contractual Life, options exercisable	7 years 5 months 9 days
Aggregate Intrinsic Value of options	$ 0