Schedule of Options Outstanding and Exerciseable (Details) (USD $)	9 Months Ended
	Apr. 30, 2013
Capital Stock Schedule Of Options Outstanding And Exerciseable 1	$ 0.33
Capital Stock Schedule Of Options Outstanding And Exerciseable 2	0.70
Capital Stock Schedule Of Options Outstanding And Exerciseable 3	2,723,878
Capital Stock Schedule Of Options Outstanding And Exerciseable 4	0.41
Capital Stock Schedule Of Options Outstanding And Exerciseable 5	2,723,878
Capital Stock Schedule Of Options Outstanding And Exerciseable 6	0.41
Capital Stock Schedule Of Options Outstanding And Exerciseable 7	0.71
Capital Stock Schedule Of Options Outstanding And Exerciseable 8	2.45
Capital Stock Schedule Of Options Outstanding And Exerciseable 9	3,826,250
Capital Stock Schedule Of Options Outstanding And Exerciseable 10	2.37
Capital Stock Schedule Of Options Outstanding And Exerciseable 11	3,676,250
Capital Stock Schedule Of Options Outstanding And Exerciseable 12	2.37
Capital Stock Schedule Of Options Outstanding And Exerciseable 13	2.46
Capital Stock Schedule Of Options Outstanding And Exerciseable 14	23.08
Capital Stock Schedule Of Options Outstanding And Exerciseable 15	2,403,748
Capital Stock Schedule Of Options Outstanding And Exerciseable 16	3.30
Capital Stock Schedule Of Options Outstanding And Exerciseable 17	2,167,084
Capital Stock Schedule Of Options Outstanding And Exerciseable 18	3.32
Capital Stock Schedule Of Options Outstanding And Exerciseable 19	8,953,876
Capital Stock Schedule Of Options Outstanding And Exerciseable 20	2.03
Capital Stock Schedule Of Options Outstanding And Exerciseable 21	$ 8,567,212
Capital Stock Schedule Of Options Outstanding And Exerciseable 22	1.99