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Note 11 - Reconciliation of the Earnings Per Share Computations (Details) - USD ($)	12 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2013
Net income attributable to NTIC	$ 1,789,571	$ 4,106,372	$ 3,366,894
Basic (in shares)	4,521,788	4,454,836	4,421,636
Weighted shares assumed upon exercise of stock options (in shares)	127,272	124,662	54,259
Diluted (in shares)	4,649,060	4,579,498	4,475,895
Basic (in dollars per share)	$ 0.40	$ 0.92	$ 0.76
Diluted (in dollars per share)	$ 0.38	$ 0.90	$ 0.75

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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