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Consolidated Statements of Shareholders' Equity and Comprehensive Income (Loss) (USD $) | Preferred Stock | Common Stock | Additional Paid-in Capital | Accumulated Comprehensive Income (loss) | Accumulated Deficit | Total
--- | --- | --- | --- | --- | --- | ---
Balance, beginning at Aug. 31, 2010 | $ 433 | $ 67,360 | $ 92,341,555 | $ (1,580) | $ (49,947,769) | $ 42,459,999
Balance, beginning shares at Aug. 31, 2010 | 432,513 | 20,206,566 |  |  |  |
Sale of common stock, less fees and expenses |  | 6,163 | 5,395,442 |  |  | 5,401,605
Sale of common stock, less fees and expenses, shares |  | 1,848,931 |  |  |  |
Issuance of restricted common stock upon conversion of Convertible Debt |  | 6,607 | 5,345,060 |  |  | 5,351,667
Issuance of restricted common stock upon conversion of Convertible Debt, shares |  | 1,982,099 |  |  |  |
Share-based compensation |  |  | 94,550 |  |  | 94,550
Unrealized loss on investments |  |  |  | (1,323) |  | (1,323)
Net loss |  |  |  |  | (6,016,159) | (6,016,159)
Comprehensive loss |  |  |  |  |  | (6,017,482)
Allocation of net revenues to TPF |  |  |  |  |  |
Balance, ending at Aug. 31, 2011 | 433 | 80,130 | 103,176,607 | (2,903) | (55,963,928) | 47,290,339
Balance, ending, shares at Aug. 31, 2011 | 432,513 | 24,037,596 |  |  |  |
Issuance of restricted common stock upon conversion of Convertible Debt |  |  |  |  |  |
Share-based compensation |  |  | 54,588 |  |  | 54,588
Unrealized loss on investments |  |  |  | 1,822 |  | 1,822
Net loss |  |  |  |  | (17,418,661) | (17,418,661)
Comprehensive loss |  |  |  |  |  | (17,416,839)
Allocation of net revenues to TPF |  |  | 189,674 |  |  | 189,674
Balance, ending at Aug. 31, 2012 | 433 | 80,130 | 103,420,869 | (1,081) | (73,382,589) | 30,117,762
Balance, ending, shares at Aug. 31, 2012 | 432,513 | 24,037,596 |  |  |  |
Issuance of restricted common stock upon conversion of Convertible Debt |  |  |  |  |  |
Share-based compensation |  |  | 66,812 |  |  | 66,812
Net loss |  |  |  |  | (4,150,445) | (4,150,445)
Comprehensive loss |  |  |  |  |  | (4,149,364)
Allocation of net revenues to TPF |  |  |  |  |  |
Reduction in TPF due to remedies under the Arkansas River Agreement |  |  | 11,737,265 |  |  | 11,737,265
Realized gain on investments |  |  |  | 1,081 |  | 1,081
Balance, ending at Aug. 31, 2013 | $ 433 | $ 80,130 | $ 115,224,946 |  | $ (77,533,034) | $ 37,772,475
Balance, ending, shares at Aug. 31, 2013 | 432,513 | 24,037,596 |  |  |  |

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