Warrants outstanding and exercisable by price range as of December 31, 2012 were as follows (Details)	Dec. 31, 2012
Outstanding Warrants Number
Price Range 0.100	35,000
Price Range 0.120	840,612
Price Range 0.125	7,464,597
Price Range 0.150	2,850,000
Price Range 0.225	600,000
Price Range 0.250	4,175,000
Price Range 0.500	400,000
Total Price Range From 0.100 to 0.500	16,365,209
Average Weighted Remaining Contractual Life in Years
Price Range 0.100	0.49
Price Range 0.120	2.14
Price Range 0.125	1.84
Price Range 0.150	1.18
Price Range 0.225	0.86
Price Range 0.250	0.61
Price Range 0.500	0.48
Total Price Range From 0.100 to 0.500	1.60
Exercisable Warrants Number
Price Range 0.100	35,000
Price Range 0.120	790,612
Price Range 0.125	7,464,597
Price Range 0.150	2,850,000
Price Range 0.225	600,000
Price Range 0.250	4,175,000
Price Range 0.500	400,000
Total Price Range From 0.100 to 0.500	16,315,209
Exercisable Warrants Weighted Average Exercise Price
Price Range 0.100	0.100
Price Range 0.120	0.120
Price Range 0.125	0.125
Price Range 0.150	0.150
Price Range 0.225	0.225
Price Range 0.250	0.250
Price Range 0.500	0.500
Total Price Range From 0.100 to 0.500	0.170