MINERAL RIGHTS AND PROPERTIES (Details 2) - USD ($)	12 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2014
Mineral property expenditures	$ 4,061,159	$ 5,706,080	$ 9,160,648
Revaluation of Asset Retirement Obligations	(308,398)	0	0
Palangana Mine [Member]
Mineral property expenditures	1,273,002	2,147,293	2,566,770
Revaluation of Asset Retirement Obligations	(308,398)
Goliad Project [Member]
Mineral property expenditures	92,588	105,282	1,747,619
Burke Hollow Project [Member]
Mineral property expenditures	1,034,888	1,316,321	2,094,089
Longhorn Project [Member]
Mineral property expenditures	10,149	66,135	71,497
Salvo Project [Member]
Mineral property expenditures	34,289	54,462	14,384
Anderson Project [Member]
Mineral property expenditures	178,212	240,519	254,840
Workman Creek Project [Member]
Mineral property expenditures	32,820	31,702	32,290
Slick Rock Project [Member]
Mineral property expenditures	53,861	53,313	66,525
Yuty Project [Member]
Mineral property expenditures	388,840	392,879	451,464
Coronel Oviedo Project [Member]
Mineral property expenditures	569,077	564,501	759,804
Other Mineral Property [Member]
Mineral property expenditures	$ 701,831	$ 733,673	$ 1,101,366