SEGMENTED INFORMATION (Tables)

12 Months Ended

Jul. 31, 2015

Jul. 31, 2014

Jul. 31, 2013

Schedule of Long-Term Assets by Geographic Segment [Table Text Block]

						July 31, 2015
				United States
		Texas		Arizona		Other States		Canada		Paraguay		Total
Mineral Rights and Properties	$	13,555,492	$	10,891,861	$	910,059	$	-	$	13,080,555	$	38,437,967
Property, Plant and Equipment		6,926,682		-		-		7,502		14,463		6,948,647
Reclamation Deposits		1,690,209		15,000		816		-		-		1,706,025
Total Long-Term Assets	$	22,172,383	$	10,906,861	$	910,875	$	7,502	$	13,095,018	$	47,092,639

						July 31, 2014
				United States
Balance Sheet Items		Texas		Arizona		Other States		Canada		Paraguay		Total
Mineral Rights and Properties	$	14,732,677	$	10,791,861	$	883,606	$	-	$	13,080,555	$	39,488,699
Property, Plant and Equipment		7,966,833		-		465		12,960		25,079		8,005,337
Reclamation Deposits		5,662,814		15,000		815		-		-		5,678,629
Total Long-Term Assets	$	28,362,324	$	10,806,861	$	884,886	$	12,960	$	13,105,634	$	53,172,665

Schedule of Operating Results by Geographic Segments [Table Text Block]

		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 property		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	)

		Year Ended July 31, 2014
Statement of Operations					United States
		Texas			Arizona			Other States			Canada			Paraguay			Total
Sales	$	-		$	-		$	-		$	-		$	-		$	-
Costs and Expenses:
Cost of sales		-			-			-			-			-			-
Inventory write-down		804,060			-			-			-			-			804,060
Mineral property expenditures		7,362,492			328,479			258,408			-			1,211,269			9,160,648
General and administrative		5,726,867			187,997			85,027			3,822,974			2,931			9,825,796
Depreciation, amortization and accretion		2,348,846			758			7,470			23,720			12,072			2,392,866
Impairment loss on mineral properties		440,115			5,041			208,068			-			-			653,224
		16,682,380			522,275			558,973			3,846,694			1,226,272			22,836,594
Loss from operations		(16,682,380	)		(522,275	)		(558,973	)		(3,846,694	)		(1,226,272	)		(22,836,594	)
Other income (expenses)		(3,185,554	)		(20,588	)		-			(2,148	)		68			(3,208,222	)
Loss before income taxes	$	(19,867,934	)	$	(542,863	)	$	(558,973	)	$	(3,848,842	)	$	(1,226,204	)	$	(26,044,816	)

		Year Ended July 31, 2013
Statement of Operations					United States						Canada			Paraguay			Total
		Texas			Arizona			Other States
Sales	$	9,026,325		$	-		$	-		$	-		$	-		$	9,026,325
Costs and Expenses:
Cost of sales		8,016,265			-			-			-			-			8,016,265
Inventory write-down		425,208			-			-			-			-			425,208
Mineral property expenditures		8,335,503			177,644			440,679			-			1,056,865			10,010,691
General and administrative		5,979,855			211,838			178,161			4,458,715			4,360			10,832,929
Depreciation, amortization and accretion		1,468,144			3,033			31,862			36,968			11,854			1,551,861
Impairment loss on mineral property		-			-			-			-			-			-
		24,224,975			392,515			650,702			4,495,683			1,073,079			30,836,954
Loss from operations		(15,198,650	)		(392,515	)		(650,702	)		(4,495,683	)		(1,073,079	)		(21,810,629	)
Other income (expenses)		(51,153	)		(21,509	)		-			(1,480	)		10,927			(63,215	)
Loss before income taxes	$	(15,249,803	)	$	(414,024	)	$	(650,702	)	$	(4,497,163	)	$	(1,062,152	)	$	(21,873,844	)