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Note 8 - Earnings Per Share (Tables)
9 Months Ended
Jul. 31, 2013
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

Three Months Ended

July 31,

   

Nine Months Ended

July 31,

 
   

2013

   

2012

   

2013

   

2012

 
                                 

Net income available to common shares

  $ 6,409     $ 10,424     $ 25,313     $ 27,808  
                                 

Basic

                               

Weighted average shares

    57,117       56,284       56,927       55,700  
                                 

Diluted

                               

Weighted average shares, basic

    57,117       56,284       56,927       55,700  

Dilutive effect of options and non-participating securities

    672       745       696       745  

Weighted average shares, diluted

    57,789       57,029       57,623       56,445  
                                 

Basic earnings per share

  $ 0.11     $ 0.19     $ 0.44     $ 0.50  

Diluted earnings per share

  $ 0.11     $ 0.18     $ 0.44     $ 0.49  
                                 

Weighted average anti-dilutive shares excluded from diluted EPS

    1,103       1,593       1,424       1,981