CAPITAL STOCK (Details 2) - USD ($)	12 Months Ended
	Jul. 31, 2017		Jul. 31, 2016	Jul. 31, 2015
Share Transactions [Line Items]
Equity Financing	$ 19,421,351		$ 8,365,037	$ 7,659,139
Consulting Services	1,107,937		1,372,381	1,851,074
Options Exercised	56,925		225,115	24,550
Share Bonuses / Shares Issued Under Stock Incentive Plan	1,584,394		726,244	$ 235,490
Credit Facility	1,100,000		1,700,000
Asset Acquisition	87,617		1,226,875
Settlement of Current Liabilities	1,524,650		$ 453,444
Mineral Property	48,672
Warrants Exercised	$ 2,387,660
Common Stock [Member]
Share Transactions [Line Items]
Balance (in shares)	116,670,457		97,834,087	90,966,558
Equity Financing (in shares)	17,330,836		12,364,704	5,280,045
Equity Financing	$ 17,331		$ 12,365	$ 5,280
Consulting Services (in shares)	865,386		1,429,650	1,108,390
Consulting Services	$ 862		$ 1,429	$ 1,111
Options Exercised (in shares)	264,727		682,167	304,657
Options Exercised	$ 266		$ 682	$ 305
Share Bonuses / Shares Issued Under Stock Incentive Plan (in shares)	830,819		826,782	174,437
Share Bonuses / Shares Issued Under Stock Incentive Plan	$ 834		$ 820	$ 173
Credit Facility (in shares)	738,503		1,711,933
Credit Facility	$ 739		$ 1,712
Asset Acquisition (in shares)	61,939		1,333,560
Asset Acquisition	$ 62		$ 1,334
Settlement of Current Liabilities (in shares)	1,015,940		487,574
Settlement of Current Liabilities	$ 1,016		$ 487
Mineral Property (in shares)	46,800
Mineral Property	$ 46
Warrants Exercised (in shares)	1,989,717
Warrants Exercised	$ 1,989
Balance (in shares)	139,815,124		116,670,457	97,834,087
Minimum [Member] | Mining Properties and Mineral Rights [Member]
Share Transactions [Line Items]
Value per Share	$ 1.04
Maximum [Member] | Mining Properties and Mineral Rights [Member]
Share Transactions [Line Items]
Value per Share	1.04
Shares Issued For Credit Facility [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	1.49		$ 0.83
Shares Issued For Credit Facility [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	$ 1.49		$ 1.20
Settlement of Current Liabilities [Member]
Share Transactions [Line Items]
Equity Financing (in shares)			487,574
Equity Financing			$ 453,444
Settlement of Current Liabilities (in shares)	664,879
Settlement of Current Liabilities	$ 1,070,455
Settlement of Current Liabilities [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	$ 1.03		$ 0.93
Settlement of Current Liabilities [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	$ 1.54		0.93
Equity Financing [Member]
Share Transactions [Line Items]
Equity Financing	$ 20,035,841
Equity Financing [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	$ 1.50		0.85	$ 1.70
Equity Financing [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	1.50		0.85	2.00
Asset Acquisition [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	1.35		0.92
Asset Acquisition [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	1.43		0.92
Consulting Services [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	0.86		0.72	1.07
Consulting Services [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	1.64		1.38	2.90
Share Compensation [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share				1.35
Share Compensation [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share				1.35
Options Exercised [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	0.45	[1]	0.33	0.33	[2]
Options Exercised [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	1.32	[1]	0.33	$ 1.32	[2]
Stock Incentive Plan [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	0.88		0.73
Stock Incentive Plan [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	1.61		$ 1.08
Warrants Exercised Member [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	1.20
Warrants Exercised Member [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	$ 1.20

[1] 309,634 options were exercised on a forfeiture basis resulting in 162,227 net shares issued.

[2] 535,000 options were exercised on a forfeiture basis resulting in 230,267 net shares issued.