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Note 9 - Total Comprehensive Income (Detail) - Comprehensive Income: (USD $)
12 Months Ended
Aug. 31, 2012
Aug. 31, 2011
Net income attributable to NTIC $ 3,448,196 $ 3,900,120
Other comprehensive income (loss) – foreign currency translation adjustment (2,219,357) 1,792,467
Total comprehensive income (loss) attributable to NTIC $ 1,228,839 $ 5,692,587