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Note 9 - Earnings Per Share (Tables)
12 Months Ended
Aug. 31, 2014
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

2014

   

2013

    2012  
                         

Net Income

  $ 1,224,124     $ 729,687     $ 1,473,362  

Denominator for earnings per share:

                       
                         

Weighted average shares; denominator for basic earnings per share

    2,899,576       2,882,949       2,849,066  
                         

Effect of dilutive securities; employee and non-employee options

    64,808       59,878       53,837  
                         

Dilutive common shares; denominator for diluted earnings per share

    2,964,384       2,942,827       2,902,903  
                         

Basic earnings per share

  $ .42     $ .25     $ .52  
                         

Dilutive earnings per share

  $ .41     $ .25     $ .51