SEGMENTED INFORMATION (Tables)

12 Months Ended

Jul. 31, 2014

Jul. 31, 2013

Jul. 31, 2012

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

						July 31, 2014
Balance Sheet Items		United States						Canada		Paraguay		Total
		Texas		Arizona		Other States
Deferred Financing Costs	$	167,621	$	-	$	-	$	-	$	-	$	167,621
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	$	28,529,945	$	10,806,861	$	884,886	$	12,960	$	13,105,634	$	53,340,286

						July 31, 2013
Balance Sheet Items		United States						Canada		Paraguay		Total
		Texas		Arizona		Other States
Deferred Financing Costs	$	200,141	$	-	$	-	$	-	$	-	$	200,141
Mineral Rights and Properties		16,911,826		10,712,052		1,081,419		-		13,080,555		41,785,852
Property, Plant and Equipment		8,597,774		4,297		24,459		34,840		33,907		8,695,277
Reclamation Deposits		6,025,095		15,000		814		-		-		6,040,909
Total Long-term Assets	$	31,734,836	$	10,731,349	$	1,106,692	$	34,840	$	13,114,462	$	56,722,179

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

		Year ended July 31, 2014
Statement of Operations		United States									Canada			Paraguay			Total
		Texas			Arizona			Other States
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) and 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
		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) and 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	)

		Year ended July 31, 2012
Statement of Operations					United States						Canada			Paraguay			Total
		Texas			Arizona			Other States
Sales	$	13,757,400		$	-		$	-		$	-		$	-		$	13,757,400
Costs and Expenses:
Cost of sales		8,112,040			-			-			-			-			8,112,040
Inventory write-down		-			-			-			-			-			-
Mineral property expenditures		11,429,645			465,131			209,067			-			2,834,879			14,938,722
General and administrative		9,113,348			340,879			349,203			4,179,124			54,420			14,036,974
Depreciation, amortization and accretion		1,105,190			1,769			110,853			49,273			8,472			1,275,557
		29,760,223			807,779			669,123			4,228,397			2,897,771			38,363,293
Loss from operations		(16,002,823	)		(807,779	)		(669,123	)		(4,228,397	)		(2,897,771	)		(24,605,893	)
Other (income) and expenses		387,344			195,342			-			(11,634	)		(31,437	)		539,615
Loss before income taxes	$	(16,390,167	)	$	(1,003,121	)	$	(669,123	)	$	(4,216,763	)	$	(2,866,334	)	$	(25,145,508	)