SEGMENTED INFORMATION (Tables)

12 Months Ended

Jul. 31, 2017

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

The table below provides a breakdown of the Company’s long-term assets by geographic segment:

	July 31, 2017
	United States
Balance Sheet Items	Texas		Arizona		Other States		Canada		Paraguay		Total
Mineral Rights and Properties	$	12,780,728	$	10,932,199	$	705,464	$	-	$	14,513,585	$	38,931,976
Property, Plant and Equipment		6,414,329		-		-		11,185		365,668		6,791,182
Reclamation Deposits		1,690,209		15,000		819		-		-		1,706,028
Equity-Accounted Investment		-		-		-		151,676		-		151,676
Other Long-Term Assets		422,769		-		582,206		-		-		1,004,975
Total Long-Term Assets	$	21,308,035	$	10,947,199	$	1,288,489	$	162,861	$	14,879,253	$	48,585,837

	July 31, 2016
	United States
Balance Sheet Items	Texas		Arizona		Other States		Canada		Paraguay		Total
Mineral Rights and Properties	$	13,191,408	$	10,891,861	$	810,127	$	-	$	13,080,555	$	37,973,951
Property, Plant and Equipment		6,573,079		-		-		14,909		354,316		6,942,304
Reclamation Deposits		1,690,209		15,000		818		-		-		1,706,027
Other Long-Term Assets		-		-		-		-		1,553,388		1,553,388
Total Long-Term Assets	$	21,454,696	$	10,906,861	$	810,945	$	14,909	$	14,988,259	$	48,175,670

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]

The table below provides a breakdown of the Company’s operating results by geographic segment. All intercompany transactions have been eliminated.

	Year Ended July 31, 2017
Statement of Operations	United States
	Texas		Arizona		Other States		Canada		Paraguay		Total
Sales	$	-	$	-	$	-	$	-	$	-	$	-
Costs and Expenses:
Cost of sales		-		-		-		-		-		-
Inventory write-down		60,694		-		-		-		-		60,694
Mineral property expenditures		2,450,834		101,628		70,588		-		1,497,338		4,120,388
General and administrative		7,053,270		33,761		3,933		3,063,839		86,878		10,241,681
Depreciation, amortization and accretion		487,288		-		996		8,088		1,356		497,728
Impairment loss on mineral property		185,942		8,334		103,666		-		-		297,942
		10,238,028		143,723		179,183		3,071,927		1,585,572		15,218,433
Loss from operations		(10,238,028)		(143,723)		(179,183)		(3,071,927)		(1,585,572)		(15,218,433)
Other income (expenses)		(2,772,617)		(18,914)		-		636		3,917		(2,786,978)
Loss before income taxes	$	(13,010,645)	$	(162,637)	$	(179,183)	$	(3,071,291)	$	(1,581,655)	$	(18,005,411)

	Year Ended July 31, 2016
Statement of Operations	United States
	Texas		Arizona		Other States		Canada		Paraguay		Total
Sales	$	-	$	-	$	-	$	-	$	-	$	-
Costs and Expenses:
Cost of sales		-		-		-		-		-		-
Inventory write-down		-		-		-		-		-		-
Mineral property expenditures		2,733,007		236,717		133,518		-		957,917		4,061,159
General and administrative		6,447,801		205,591		2,724		2,636,514		5,116		9,297,746
Depreciation, amortization and accretion		857,966		-		2,821		8,142		6,795		875,724
Impairment loss on mineral property		-		-		97,114		-		-		97,114
		10,038,774		442,308		236,177		2,644,656		969,828		14,331,743
Loss from operations		(10,038,774)		(442,308)		(236,177)		(2,644,656)		(969,828)		(14,331,743)
Other income (expenses)		(3,012,281)		(18,965)		-		850		28		(3,030,368)
Loss before income taxes	$	(13,051,055)	$	(461,273)	$	(236,177)	$	(2,643,806)	$	(969,800)	$	(17,362,111)

	Year Ended July 31, 2015
Statement of Operations	United States
	Texas		Arizona		Other States		Canada		Paraguay		Total
Sales	$	3,080,000	$	-	$	-	$	-	$	-	$	3,080,000
Costs and Expenses:
Cost of sales		2,326,674		-		-		-		-		2,326,674
Inventory write-down		-		-		-		-		-		-
Mineral property expenditures		4,227,720		289,676		231,305		-		957,379		5,706,080
General and administrative		9,702,423		194,910		19,317		3,284,772		29,418		13,230,840
Depreciation, amortization and accretion		1,776,845		-		2,635		12,026		10,937		1,802,443
Impairment loss on mineral properties		349,805		-		-		-		-		349,805
		18,383,467		484,586		253,257		3,296,798		997,734		23,415,842
Loss from operations		(15,303,467)		(484,586)		(253,257)		(3,296,798)		(997,734)		(20,335,842)
Other income (expenses)		(3,042,084)		(19,785)		-		(120)		490		(3,061,499)
Loss before income taxes	$	(18,345,551)	$	(504,371)	$	(253,257)	$	(3,296,918)	$	(997,244)	$	(23,397,341)