Schedule of Stockholders' Equity Note, Warrants or Rights (Details) (USD $)	6 Months Ended
	Jan. 31, 2013
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights 1	$ 1,558,812
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights 2	4.95
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights 3	1.45
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights 4	(888,687)
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights 5	6.76
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights 6	0
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights 7	$ 670,125
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights 8	2.56
Capital Stock Schedule Of Stockholders' Equity Note, Warrants Or Rights 9	2.46