MINERAL RIGHTS AND PROPERTIES (Tables)

12 Months Ended

Jul. 31, 2016

Mineral Industries Disclosures [Abstract]

Schedule Of Mineral Rights and Property Acquisition Costs [Table Text Block]

Mineral rights and property acquisition costs consisted of the following:

	July 31, 2016		July 31, 2015
Mineral Rights and Properties
Palangana Mine	$	6,443,028	$	6,587,135
Goliad Project		8,689,127		8,689,127
Burke Hollow Project		1,495,750		1,495,750
Longhorn Project		116,870		116,870
Salvo Project		14,905		14,905
Nichols Project		154,774		154,774
Anderson Project		9,154,268		9,154,268
Workman Creek Project		1,472,008		1,472,008
Los Cuatros Project		257,250		257,250
Slick Rock Project		615,650		661,271
Yuty Project		11,947,144		11,947,144
Coronel Oviedo Project		1,133,412		1,133,412
Other Property Acquisitions		234,248		285,741
		41,728,434		41,969,655
Accumulated Depletion		(3,929,884)		(3,929,884)
		37,798,550		38,039,771
Databases		2,410,038		2,410,038
Accumulated Amortization		(2,364,019)		(2,166,966)
		46,019		243,072
Land Use Agreements		404,310		390,155
Accumulated Amortization		(274,928)		(235,031)
		129,382		155,124
	$	37,973,951	$	38,437,967

Schedule of Finite-Lived Mineral Rights And Properties, Future Estimated Amortization And Depletion Expense [Table Text Block]

The estimated depletion and amortization of mineral rights and properties for the next five fiscal years are as follows:

Fiscal 2017	$	68,605
Fiscal 2018		52,028
Fiscal 2019		379,585
Fiscal 2020		832,588
Fiscal 2021		1,595,344
Total	$	2,928,150

Schedule Of Mineral Property Expenditures Incurred by Major Projects [Table Text Block]

Mineral property expenditures incurred by major projects were as follows:

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