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Note 5 - Participating Interests in Export Water (Detail) (USD $) | 12 Months Ended |
--- | --- | ---
Aug. 31, 2012 | Aug. 31, 2011 | Aug. 31, 2010 | Aug. 31, 1996
Long-term Debt | $ 9,550,300 |  |  | $ 31,800,000
Contingent Liability |  |  |  | 20,700,000
Business Acquisition, Cost of Acquired Entity, Cash Paid |  |  |  | 3,500,000
Tap Participation Fee Payments | 34,522 |  |  |
Revenues | 284,384 | 282,134 | 264,107 |
Borrowings [Member] |  |  |  |
Long-term Debt |  |  |  | 11,100,000
Percentage of Liability |  |  |  | 35.00%
Contingent [Member] |  |  |  |
Percentage of Liability |  |  |  | 65.00%
First Priority Payout [Member] |  |  |  |
Revenues | 5,100,000 |  |  |
Remaining First Priortiy Payout [Member] |  |  |  |
Revenues | $ 7,300,000 |  |  |

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