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Stock Options (Tables) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2017 | Aug. 31, 2017 | Aug. 31, 2016
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  |  |  |  | Weighted |
|  | Options |  |  | Average Exercise |
|  | Outstanding |  |  | Price |
|  |  |  |  | $ |
Balance, August 31, 2016 |  | 3,485,000 |  |  | 0.15 |
Exercised |  | (1,014,125 | ) |  | 0.17 |
Granted |  | 850,000 |  |  | 0.14 |
Balance, August 31, 2017 |  | 3,320,875 |  |  | 0.15 |
Exercised |  | (55,000 | ) |  | 0.23 |
Balance, November 30, 2017 |  | 3,265,875 |  |  | 0.15 |
|  |  |  |  |  | Weighted Average |
|  |  | Number of Options |  |  | Exercise Price |
|  |  |  |  |  | $ |
| Balance, August 31, 2015 (vested and outstanding) |  | 4,070,000 |  |  | 0.15 |
| Expired |  | (385,000 | ) |  | 0.32 |
| Cancelled |  | (935,000 | ) |  | 0.16 |
| Granted |  | 735,000 |  |  | 0.13 |
| Balance, August 31, 2016 (vested and outstanding) |  | 3,485,000 |  |  | 0.15 |
| Exercised |  | (1,014,125 | ) |  | 0.17 |
| Granted |  | 850,000 |  |  | 0.14 |
| Balance, August 31, 2017 (outstanding) |  | 3,320,875 |  |  | 0.15 |
| Balance, August 31, 2017 (exercisable) |  | 3,020,875 |  |  | 0.14 |
|  |  |  |  |  | Weighted Average |
|  |  | Number of |  |  | Exercise Price |
|  |  | Options |  |  | $ |
| Balance, August 31, 2014 (vested and outstanding) |  | 2,887,500 |  |  | 0.22 |
| Expired |  | (1,210,000 | ) |  | 0.21 |
| Granted |  | 2,392,500 |  |  | 0.10 |
| Balance, August 31, 2015 (vested and outstanding) |  | 4,070,000 |  |  | 0.15 |
| Expired |  | (385,000 | ) |  | 0.32 |
| Cancelled |  | (935,000 | ) |  | 0.16 |
| Granted |  | 735,000 |  |  | 0.13 |
| Balance, August 31, 2016 (vested and outstanding) |  | 3,485,000 |  |  | 0.13 |
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] |
Number of Stock | Number of Stock | Weighted | Weighted | Aggregate
Options | Options | Average | Average | Intrinsic Value
| Exercisable | Remaining | Exercise Price |
|  | Contractual Life | $ | $
247,500 | 247,500 | 0.55 years | 0.09 | 231,188
193,375 | 193,375 | 1.65 years | 0.23 | 154,261
990,000 | 990,000 | 2.06 years | 0.10 | 915,750
275,000 | 275,000 | 2.18 years | 0.09 | 256,875
550,000 | 550,000 | 2.32 years | 0.09 | 513,750
110,000 | 110,000 | 2.80 years | 0.17 | 93,750
300,000 | 300,000 | 3.38 years | 0.11 | 274,500
200,000 | 200,000 | 4.51 years | 0.37 | 131,000
400,000 | 100,000 | 4.56 years | 0.29 | 292,000
3,265,875 | 2,965,875 | 2.58 years | 0.15 | 2,863,073
Number of | Number of Stock | Weighted | Weighted | Aggregate
Stock Options | Options | Average | Average | Intrinsic Value
| Exercisable | Remaining | Exercise Price |
|  | Contractual Life | $ | $
247,500 | 247,500 | 0.80 years | 0.09 | 64,125
248,375 | 248,375 | 1.90 years | 0.23 | 30,482
990,000 | 990,000 | 2.31 years | 0.10 | 247,500
275,000 | 275,000 | 2.43 years | 0.09 | 71,250
550,000 | 550,000 | 2.57 years | 0.09 | 142,500
110,000 | 110,000 | 3.05 years | 0.17 | 19,500
300,000 | 300,000 | 3.62 years | 0.11 | 72,000
200,000 | 200,000 | 4.76 years | 0.37 | (4,000)
400,000 | 100,000 | 4.81 years | 0.30 | 22,000
3,320,875 | 3,020,875 | 2.81 years | 0.15 | 665,357
# of Stock | Weighted |  | Weighted |  |  | Aggregate |
Options | Average |  | Average |  |  | Intrinsic Value |
| Remaining |  | Exercise Price |  |  |  |
| Contractual Life |  | $ |  |  | $ |
247,500 | 1.80 years |  | 0.09 |  |  | 4,950 |
660,000 | 2.90 years |  | 0.23 |  |  | (85,800 | )
1,017,500 | 3.31 years |  | 0.10 |  |  | 10,175 |
275,000 | 3.43 years |  | 0.09 |  |  | 5,500 |
550,000 | 3.57 years |  | 0.09 |  |  | 11,000 |
110,000 | 4.05 years |  | 0.17 |  |  | (7,700 | )
300,000 | 4.62 years |  | 0.11 |  |  | 3,000 |
325,000 | 4.76 years |  | 0.14 |  |  | (6,500 | )
3,485,000 | 3.45 years |  | 0.13 |  |  | (65,375 | )
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |  |
| August 31 | August 31
| 2017 | 2016
Expected volatility | 98% - 108% | 240% - 241%
Risk-free interest rate | 0.83% - 1.78% | 1.22% - 1.62%
Expected life | 2 - 5 years | 5 years
Dividend yield | 0.00% | 0.00%
Estimated fair value per option | $0.07 - $0.27 | $0.11 - $0.19
| August 31 | August 31
| 2016 | 2015
Expected volatility | 240% - 241% | 243% - 249%
Risk-free interest rate | 1.22% - 1.62% | 1.47% - 1.66%
Expected life | 5.00 years | 5.00 years
Dividend yield | 0.00% | 0.00%
Estimated fair value per option | $0.11 - $0.19 | $0.08 - $0.10

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- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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