Stock Options and Warrants (Details) (Employee Stock Option [Member], USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Employee Stock Option [Member]
Shares, Beginning Balance	1,295,000	3,316,000
Shares, Granted	10,000	0
Shares, Exercised	0	0
Shares, Cancelled/expired	(57,000)	(110,000)
Shares, Ending Balance	1,248,000	3,206,000
Exercisable at end of year	889,000	2,706,000
Weighted Average Exercise Price, at beginning of year	$ 0.31	$ 0.44
Weighted Average Exercise Price, Granted	$ 0.13	$ 0
Weighted Average Exercise Price, Cancelled/expired	$ 1.01	$ 0.97
Weighted Average Exercise Price, at end of year	$ 0.23	$ 0.42
Weighted Average Exercise Price, Exercisable, at end of year	$ 0.26	$ 0.47
Aggregate Intrinsic Value, Outstanding at end of year	$ 13,000	$ 12,000