Schedule of Mineral Property Expenditures (Details)	12 Months Ended
	Jul. 31, 2015 USD ($)
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 1	$ 2,147,293
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 2	2,566,770
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 3	4,347,025
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 4	105,282
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 5	1,747,619
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 6	540,853
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 7	1,316,321
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 8	2,094,089
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 9	2,225,132
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 10	66,135
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 11	71,497
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 12	16,335
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 13	54,462
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 14	14,384
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 15	54,329
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 16	240,519
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 17	254,840
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 18	117,008
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 19	31,702
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 20	32,290
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 21	33,573
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 22	53,313
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 23	66,525
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 24	147,043
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 25	392,879
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 26	451,464
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 27	424,411
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 28	564,501
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 29	759,804
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 30	632,454
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 31	733,673
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 32	1,101,366
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 33	1,472,528
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 34	5,706,080
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 35	9,160,648
Mineral Rights And Properties Schedule Of Mineral Property Expenditures 36	$ 10,010,691