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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%

X

- Definition

If the adjusted EBITOI (EBITO adjusted for amounts to be paid under the bonus plan) falls below this threshold then no cash bonuses will be paid.

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Percentage of trade joint venture receivables generated from a single joint venture.

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Maximum percentage of EBITOI available as bonus amounts under the bonus plan.

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Percentage of individual's bonus payout determined based upon the Company's actual EBITOI for the fiscal year compared to pre-established target EBITOI for the fiscal year.

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Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements.

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-Section 03

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Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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