Stock Options and Warrants (Summary of Warrants Outstanding by Price Range) (Details) - Warrant [Member] - $ / shares	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share Based Compensation Shares Authorized Under Equity Instruments Other Than Options Exercise Price Range [Line Items]
Warrants outstanding exercise price range, lower limit	$ 0.01	$ 0.01	$ 0.01	$ 0.045
Warrants outstanding exercise price range, upper limit	0.07	0.07	0.07	$ 0.07
Warrants granted exercise price range, lower limit		0.02	0.01
Warrants granted exercise price range, upper limit	0.02	$ 0.021	$ 0.07
Warrants cancelled exercise price range, lower limit	0.03
Warrants cancelled exercise price range, upper limit	0.07
Warrants exercisable exercise price range, lower limit	0.01
Warrants exercisable exercise price range, upper limit	$ 0.07
Weighted average remaining contractual life	5 years 2 months 16 days
Number exercisable	111,000
Weighted average exercise price, exercisable	$ 0.055
Warrants exercisable, weighted average remaining contractual life	1 year 3 months 29 days