Schedule of Share-based Compensation, Stock Options, Activity (Details) (USD $)	1 Months Ended																								3 Months Ended	12 Months Ended
	Dec. 31, 2012	Nov. 30, 2012	Oct. 31, 2012	Sep. 30, 2012	Aug. 31, 2012	Jul. 31, 2012	Jun. 30, 2012	May 31, 2012	Apr. 30, 2012	Mar. 31, 2012	Feb. 29, 2012	Jan. 31, 2012	Dec. 31, 2011	Nov. 30, 2011	Oct. 31, 2011	Sep. 30, 2011	Aug. 31, 2011	Jul. 31, 2011	Jun. 30, 2011	May 31, 2011	Apr. 30, 2011	Mar. 31, 2011	Feb. 28, 2011	Jan. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Beginning of Period												7,751,180												6,735,600		7,751,180	6,735,600	5,949,700
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Beginning of Period												$ 2.54												$ 1.86		$ 2.54	$ 1.86	$ 1.88
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures																										1,690,500	3,427,000	1,240,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price																										$ 1.32	$ 2.88	$ 1.46
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	0	0	(4,500)	0	(40,000)	0	0	(4,000)	0	(10,000)	(52,300)	(10,000)	(60,000)	0	(33,700)	(40,000)	(44,500)	(170,000)	(85,000)	(249,500)	(80,000)	(625,000)	(270,500)	(565,720)	(454,100)	(120,800)	(2,223,920)	(454,100)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price																										$ 0.80	$ 1.01	$ 0.95
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period																										(95,000)	(187,500)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price																										$ 3.13	$ 2.59
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, End of Period	9,225,880												7,751,180												6,735,600	9,225,880	7,751,180	6,735,600
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, End of Period	$ 2.33												$ 2.54												$ 1.86	$ 2.33	$ 2.54	$ 1.86
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term, End of Period	6 years 4 months 20 days																									6 years 4 months 20 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value, End of Period	$ 615,497																									$ 615,497
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number, End of Period	8,018,830																									8,018,830
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price, End of Period	$ 2.47																									$ 2.47
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term, End of Period	5 years 11 months 1 day																									5 years 11 months 1 day
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value, End of Period	$ 547,856																									$ 547,856