SEGMENTED INFORMATION (Details) - USD ($)	Apr. 30, 2016	Jul. 31, 2015
Mineral Rights and Properties	$ 38,163,086	$ 38,437,967
Property, Plant and Equipment	7,020,860	6,948,647
Reclamation Deposits	1,706,026	1,706,025
Other Long-Term Assets	1,553,388	0
Total Long-Term Assets	48,443,360	47,092,639
United States Texas [Member]
Mineral Rights and Properties	13,369,394	13,555,492
Property, Plant and Equipment	6,648,175	6,926,682
Reclamation Deposits	1,690,209	1,690,209
Other Long-Term Assets	0
Total Long-Term Assets	21,707,778	22,172,383
United States Arizona [Member]
Mineral Rights and Properties	10,891,861	10,891,861
Property, Plant and Equipment	0	0
Reclamation Deposits	15,000	15,000
Other Long-Term Assets	0
Total Long-Term Assets	10,906,861	10,906,861
United States Other States [Member]
Mineral Rights and Properties	821,276	910,059
Property, Plant and Equipment	0	0
Reclamation Deposits	817	816
Other Long-Term Assets	0
Total Long-Term Assets	822,093	910,875
Canada [Member]
Mineral Rights and Properties	0	0
Property, Plant and Equipment	16,965	7,502
Reclamation Deposits	0	0
Other Long-Term Assets	0
Total Long-Term Assets	16,965	7,502
Paraguay [Member]
Mineral Rights and Properties	13,080,555	13,080,555
Property, Plant and Equipment	355,720	14,463
Reclamation Deposits	0	0
Other Long-Term Assets	1,553,388
Total Long-Term Assets	$ 14,989,663	$ 13,095,018

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Mineral Rights
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
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