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Note 18 - Average Share Information (Tables)
9 Months Ended
Sep. 30, 2014
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

For the three months ended September 30,

   

For the nine months ended September 30,

 
   

2014

   

2013

   

2014

   

2013

 

Basic net income per common share

                               

Net income applicable to common shareholders

  $ 1,982     $ 22,233     $ 6,037     $ 25,908  

Undistributed earnings allocated to participating securities

    (9 )     (200 )     (42 )     (233 )

Net income allocated to common shareholders

  $ 1,973     $ 22,033     $ 5,995     $ 25,675  

Average common shares issued and outstanding

    12,710,091       12,663,162       12,692,006       12,655,473  

Basic net income per common share

  $ 0.15     $ 1.74     $ 0.47     $ 2.03  
                                 

Diluted net income per common share

                               

Net income applicable to common shareholders

  $ 1,982     $ 22,233     $ 6,037     $ 25,908  

Undistributed earnings allocated to participating securities

    (9 )     (200 )     (42 )     (232 )

Net income allocated to common shareholders

  $ 1,973     $ 22,033     $ 5,995     $ 25,676  

Average common shares issued and outstanding

    12,710,091       12,663,162       12,692,006       12,655,473  

Dilutive potential common shares (1)

    61,543       11,581       49,970       -  

Total diluted average common shares issued and outstanding

    12,771,634       12,674,743       12,741,976       12,655,473  

Diluted net income per common share

  $ 0.15     $ 1.74     $ 0.47     $ 2.03