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Note 8 - Stockholders' Equity (Tables)
3 Months Ended
Nov. 30, 2014
Stockholders' Equity Note [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
Options Exercised
Exercise Price
 18,000
$        7.65
Options Exercised
Exercise Price
 1,000
$        7.65