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Note 16 - Commitments and Contingencies (Detail) (USD $) |  |  | 1 Months Ended |  | 1 Months Ended
--- | --- | --- | --- | --- | ---
Aug. 31, 2012 | Aug. 31, 2011 | Sep. 30, 2011 Executive Officer [Member] Fiscal 2012 Bonus Plan [Member] | Aug. 31, 2012 NTI Facilities, Inc. [Member] | Sep. 30, 2011 Fiscal 2012 Bonus Plan [Member] | Aug. 31, 2012 Fiscal 2013 Bonus Plan [Member]
Percentage of Company's Earnings Before Interest, Taxes, and Other Income Available Under the Bonus Plan, Maximum |  |  |  |  | 25.00% | 25.00%
Amount of Bonus Cash Available if EBITOI Falls Below Adjusted EBITOI Threshold (in Dollars) |  |  |  |  | $ 0 | $ 0
Adjusted EBITOI As Percentage of Target EBITOI, Threshold To Pay Bonus |  |  |  |  | 70.00% | 70.00%
Percentage of Individual Bonus Payout Determined By Actual Versus Targeted EBITOI Results |  |  | 75.00% |  |  | 75.00%
Percentage of Individual's Payout Determined Upon Achievement of Certain Pre-Established Individual Performance Objectives |  |  | 25.00% |  |  | 25.00%
Accrued Bonuses (in Dollars) | 1,248,526 | 1,379,565 |  |  |  |
Operating Leases, Future Minimum Payments Due, Next Twelve Months (in Dollars) |  |  |  | 238,500 |  |
Operating Leases, Future Minimum Payments, Due in Two Years (in Dollars) |  |  |  | 59,500 |  |
Operating Leases, Future Minimum Payments, Due Thereafter (in Dollars) |  |  |  | $ 0 |  |
Entity-Wide Trade Joint Venture Receivables, Three Joint Ventures, Percentage | 55.30% |  |  |  |  |
Entity-Wide Trade Joint Venture Receivables, Joint Venture, Percentage |  | 53.50% |  |  |  |

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