Schedule of Stockholders' Equity Note, Warrants or Rights, Activity (Details) (USD $)	9 Months Ended
	Oct. 31, 2012
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 1	$ 92,922,691
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 2	0.053
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 3	17,225,537
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 4	0.041
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 5	(22,592,684)
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 6	(0.003)
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 7	(855,314)
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 8	(0.020)
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 9	86,700,230
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 10	0.058
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 11	$ 86,700,230
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights, Activity 12	0.058