Schedule of Estimated Depletion and Amortization of Mineral Rights and Properties (Details)	12 Months Ended
	Jul. 31, 2015 USD ($)
Mineral Rights And Properties Schedule Of Estimated Depletion And Amortization Of Mineral Rights And Properties 1	$ 1,045,921
Mineral Rights And Properties Schedule Of Estimated Depletion And Amortization Of Mineral Rights And Properties 2	1,411,157
Mineral Rights And Properties Schedule Of Estimated Depletion And Amortization Of Mineral Rights And Properties 3	1,675,157
Mineral Rights And Properties Schedule Of Estimated Depletion And Amortization Of Mineral Rights And Properties 4	1,759,347
Mineral Rights And Properties Schedule Of Estimated Depletion And Amortization Of Mineral Rights And Properties 5	1,269,724
Mineral Rights And Properties Schedule Of Estimated Depletion And Amortization Of Mineral Rights And Properties 6	$ 7,161,306