Warrants Outstanding and excercisable (Details)	Mar. 31, 2013
Number Outstanding (Warrants Outstanding)
Range of Exercise Prices 0.001	299,769
Range of Exercise Prices 0.02	1,000,000
Range of Exercise Prices 0.075	350,000
Range of Exercise Prices 0.09	600,000
Range of Exercise Prices 0.15	6,614,800
Range of Exercise Prices 0.25	120,000
Range of Exercise Prices 0.40	1,299,999
Range of Exercise Prices0.50	2,614,450
Range of Exercise Prices 0.60	975,000
Range of Exercise Prices 0.75	120,000
Range of Exercise Prices 1.00	2,909,450
Range of Exercise Prices 0.0075- 1.00	16,903,468
Weighted- Average Remaining Contract Life (Warrants Outstanding)
Range of Exercise Prices 0.001	0.2
Range of Exercise Prices 0.02	0.2
Range of Exercise Prices 0.075	4.8
Range of Exercise Prices 0.09	4.8
Range of Exercise Prices 0.15	4.4
Range of Exercise Prices 0.25	2.6
Range of Exercise Prices 0.40	2.0
Range of Exercise Prices0.50	1.2
Range of Exercise Prices 0.60	3.8
Range of Exercise Prices 0.75	2.6
Range of Exercise Prices 1.00	1.6
Range of Exercise Prices 0.0075- 1.00	2.8
Weighted- Average Exercise Price (Warrants Outstanding)
Range of Exercise Prices 0.001	0.001
Range of Exercise Prices 0.02	0.02
Range of Exercise Prices 0.075	0.075
Range of Exercise Prices 0.09	0.09
Range of Exercise Prices 0.15	0.15
Range of Exercise Prices 0.25	0.25
Range of Exercise Prices 0.40	0.40
Range of Exercise Prices0.50	0.50
Range of Exercise Prices 0.60	0.60
Range of Exercise Prices 0.75	0.75
Range of Exercise Prices 1.00	1.00
Range of Exercise Prices 0.0075- 1.00	0.39
Number Exercisable (Warrants Exercisable)
Range of Exercise Prices 0.001	299,769
Range of Exercise Prices 0.02	1,000,000
Range of Exercise Prices 0.075	350,000
Range of Exercise Prices 0.09	225,000
Range of Exercise Prices 0.15	4,764,800
Range of Exercise Prices 0.25	120,000
Range of Exercise Prices 0.40	1,299,999
Range of Exercise Prices0.50	2,614,450
Range of Exercise Prices 0.60	975,000
Range of Exercise Prices 0.75	120,000
Range of Exercise Prices 1.00	2,909,450
Range of Exercise Prices 0.0075- 1.00	14,678,468
Weighted- Average Exercise Price (Warrants Exercisable)
Range of Exercise Prices 0.001	0.001
Range of Exercise Prices 0.02	0.02
Range of Exercise Prices 0.075	0.075
Range of Exercise Prices 0.09	0.09
Range of Exercise Prices 0.15	0.15
Range of Exercise Prices 0.25	0.25
Range of Exercise Prices 0.40	0.40
Range of Exercise Prices0.50	0.50
Range of Exercise Prices 0.60	0.60
Range of Exercise Prices 0.75	0.75
Range of Exercise Prices 1.00	1.00
Range of Exercise Prices 0.0075- 1.00	0.42