Schedule of Mineral Rights and Property Acquisition Costs (Details) (USD $)	12 Months Ended
	Jul. 31, 2014
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 1	$ 6,664,260
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 2	7,045,457
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 3	8,689,127
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 4	8,689,127
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 5	1,495,750
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 6	1,495,750
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 7	0
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 8	428,164
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 9	116,870
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 10	78,392
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 11	364,710
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 12	363,645
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 13	154,774
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 14	154,774
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 15	9,154,268
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 16	9,154,268
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 17	1,372,008
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 18	1,287,158
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 19	257,250
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 20	257,250
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 21	661,271
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 22	653,213
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 23	0
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 24	166,720
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 25	11,947,144
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 26	11,947,144
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 27	1,133,412
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 28	1,133,412
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 29	262,115
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 30	316,256
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 31	42,272,959
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 32	43,170,730
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 33	(3,454,533)
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 34	(2,278,053)
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 35	38,818,426
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 36	40,892,677
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 37	2,405,038
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 38	2,345,038
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 39	(1,928,901)
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 40	(1,685,011)
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 41	476,137
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 42	660,027
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 43	390,155
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 44	390,155
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 45	(196,019)
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 46	(157,007)
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 47	194,136
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 48	233,148
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 49	39,488,699
Mineral Rights And Properties Schedule Of Mineral Rights And Property Acquisition Costs 50	$ 41,785,852