Stock Options (Tables)
|
12 Months Ended |
Aug. 31, 2017 |
Aug. 31, 2016 |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
|
|
|
|
|
|
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 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
|
|
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] |
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
|
) |
|