Note 9 - Net Income Per Common Share (Tables)

3 Months Ended

Nov. 30, 2012

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended
Numerator:	November 30, 2012		November 30, 2011
Net income attributable to NTIC	$	389,622	$	958,757
Denominator:
Basic – weighted shares outstanding		4,406,205		4,355,666
Weighted shares assumed upon exercise of stock options		34,231		78,058
Diluted – weighted shares outstanding		4,440,436		4,433,724
Basic earnings per share:	$	0.09	$	0.22
Diluted earnings per share:	$	0.09	$	0.22