Note 9 - Stockholders' Equity

6 Months Ended

Feb. 29, 2016

Notes to Financial Statements

Stockholders' Equity Note Disclosure [Text Block]

9. STOCKHOLDERS’ EQUITY

During the six months ended February 29, 2016, the Company repurchased and retired 5,461 shares of its common stock. During the six months ended February 28, 2015, the Company did not repurchase or retire any shares of its common stock.

The Company granted stock options under the Northern Technologies International Corporation Amended and Restated 2007 Stock Incentive Plan (the 2007 Plan) to purchase an aggregate of 53,447 shares of its common stock to various employees and directors during the six months ended February 29, 2016. The weighted average per share exercise price of the stock options is $14.85, which is equal to the fair market value of the Company’s common stock on the date of grant.

During the six months ended February 29, 2016, no stock options to purchase shares of common stock were exercised.

The Company granted stock options under the 2007 Plan to purchase an aggregate of 45,067 shares of its common stock to various employees and directors during the six months ended February 28, 2015. The weighted average per share exercise price of the stock options is $20.10, which was equal to the fair market value of the Company’s common stock on the date of grant.

The following stock options to purchase shares of common stock were exercised during the six months ended February 28, 2015:

Options Exercised	Exercise Price
18,000	$7.65
2,333	$10.20