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Note 11 - Supplemental Disclosures Of Non-cash Activities (Tables) | 6 Months Ended
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Feb. 28, 2013
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] |
|  | February 28, 2013 |  |  | February 29, 2012 |
Accrued interest and penalties related to HP A&M receivable and related promissory notes |  | $ | 52,672 |  |  |  |
Increase in estimated Tap Participation Fee liability and related discount |  |  |  |  |  | $ | 7,450,000 |
Farm revenue allocated against the Tap Participation Fee liability and additional paid-in capital |  |  |  |  |  | $ | 103,700 |

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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration