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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) | Preferred Stock | Common Stock | Additional Paid-In Capital | Accumulated Comprehensive Income (Loss) | Collateral Stock | Accumulated Deficit | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance, beginning at Aug. 31, 2014 | $ 433 | $ 80,130 | $ 168,794,396 | $ 0 | $ 0 | $ (77,844,478) | $ 91,030,481
Balance, beginning shares at Aug. 31, 2014 | 432,513 | 24,037,598 |  |  |  |  |
Share-based compensation |  |  | 239,986 |  |  |  | 239,986
Exercise of options |  | $ 55 | 48,770 |  |  |  | 48,825
Exercise of options, shares |  | 16,500 |  |  |  |  |
Reduction in TPF due to remedies under the Arkansas River Agreement |  |  | 3,301,203 |  |  |  | 3,301,203
Collateral stock |  |  |  |  | (1,407,000) |  | (1,407,000)
Net loss |  |  |  |  |  | (23,127,947) | (23,127,947)
Unrealized holding gain on investments |  |  |  |  |  |  | 0
Balance, ending at Aug. 31, 2015 | $ 433 | $ 80,185 | 172,384,355 | 0 | (1,407,000) | (100,972,425) | 70,085,548
Balance, ending, shares at Aug. 31, 2015 | 432,513 | 24,054,098 |  |  |  |  |
Share-based compensation |  |  | 219,886 |  |  |  | 219,886
Exercise of options |  |  |  |  |  |  | $ 0
Exercise of options, shares |  |  |  |  |  |  | 0
Collateral stock retired |  | $ (1,000) | (1,406,000) |  | 1,407,000 |  | $ 0
Collateral stock retired, shares |  | (300,000) |  |  |  |  |
Net loss |  |  |  |  |  | (1,310,607) | (1,310,607)
Unrealized holding gain on investments |  |  |  | 3,122 |  |  | 3,122
Balance, ending at Aug. 31, 2016 | $ 433 | $ 79,185 | 171,198,241 | 3,122 | 0 | (102,283,032) | 68,997,949
Balance, ending, shares at Aug. 31, 2016 | 432,513 | 23,754,098 |  |  |  |  |
Share-based compensation |  |  | 233,245 |  |  |  | 233,245
Exercise of options |  |  |  |  |  |  | $ 0
Exercise of options, shares |  |  |  |  |  |  | 0
Net loss |  |  |  |  |  | (1,710,868) | $ (1,710,868)
Unrealized holding gain on investments |  |  |  | (14,227) |  |  | (14,227)
Balance, ending at Aug. 31, 2017 | $ 433 | $ 79,185 | $ 171,431,486 | $ (11,105) | $ 0 | $ (103,993,900) | $ 67,506,099
Balance, ending, shares at Aug. 31, 2017 | 432,513 | 23,754,098 |  |  |  |  |

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