Share-Based Compensation Option Roll-Forward (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Stock Option Activity [Roll Forward]
Outstanding balance (options) at December 31, 2013	4,150,550
Options granted (in shares)	462,600
Exercised (options)	(37,500)	0
Expired (options)	(505,550)
Forfeited (options)	(83,500)
Outstanding balance (options) at March 31, 2014	3,986,600
Outstanding balance (weighted average exercise price) at December 31, 2013	$ 0.75
Granted (weighted average exercise price)	$ 0.56
Exercised (weighted averaged exercise price)	$ 0.45
Expired (weighted average exercise price)	$ 1.20
Forfeited (weighted average exercise price)	$ 0.57
Outstanding balance (weighted average exercise price) at March 31, 2014	$ 0.68
Weighted Average Remaining Contractual Life, options outstanding	8 years 6 months
Aggregate Intrinsic Value (in thousands), options outstanding	$ 222
Number of options exercisable at March 31, 2014	1,388,700
Weighted average exercise price of options exercisable at March 31, 2014	$ 0.99
Weighted Average Remaining Contractual Life, options exercisable	6 years 9 months 18 days
Aggregate Intrinsic Value (in thousands), options exercisable	$ 51