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Note 10 - Income Taxes (Detail) - Significant Components of Deferred Tax Assets (USD $) | Aug. 31, 2012 | Aug. 31, 2011
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Deferred tax assets: |  |
Net operating loss carryforwards | $ 5,948,300 | $ 5,259,200
Imputed interest on Tap Participation Fee | 8,852,500 | 7,558,000
Deferred revenue | 560,700 | 702,000
Impairment charges | 2,408,800 |
Depreciation and depletion | 2,425,700 | 301,600
Other | 45,000 | 38,900
Valuation allowance | $ (20,241,000) | $ (13,859,700)

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