Share-Based Compensation Option Roll-Forward (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Option Activity [Roll Forward]
Outstanding balance (options) at December 31, 2012	6,429,250
Granted (options)	2,325,000
Options exercised in period	(182,930)	0	0
Expired (options)	(2,514,070)
Forfeited (options)	(1,906,700)
Outstanding balance (options) at December 31, 2013	4,150,550	6,429,250
Outstanding balance (weighted average exercise price) at December 31, 2012	$ 1.28
Granted (weighted average exercise price)	$ 0.47
Exercised (weighted average exercise price)	$ 0.39
Expired (weighted average exercise price)	$ 1.96
Forfeited (weighted average exercise price)	$ 0.54
Outstanding balance (weighted average exercise price) at December 31, 2013	$ 0.75	$ 1.28
Weighted average remaining contractual life, options outstanding	8 years 3 months 7 days
Aggregate Intrinsic Value (in thousands), options outstanding	$ 2
Number of options exercisable at December 31, 2013	1,907,350
Exercisable (weighted average exercise price)	$ 1.04
Weighted average remaining contractual life, options exercisable	6 years 9 months 22 days
Aggregate intrinsic value (in thousands), options exercisable	$ 2