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Note 11 - Supplemental Disclosures Of Non-cash Activities (Detail) - Non-cash Activities (USD $) | 6 Months Ended |
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Feb. 29, 2012 | Feb. 28, 2013
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 The increase (decrease) during the reporting period in other liabilities used in operating activities not separately disclosed in the statement of cash flows. May include changes in other current liabilities, other noncurrent liabilities, or a combination of other current and noncurrent liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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