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Note 3 - Earnings Per Share (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
    (In thousands, except per share data)
Net income, as reported   $ 11,201     $ 9,421     $ 33,182     $ 25,804  
Divided by:                                
Weighted average common shares outstanding     29,772       29,773       29,937       30,143  
Weighted average common stock equivalents     24       32       31       25  
Total weighted average common shares outstanding and common stock equivalents     29,796       29,805       29,968       30,168  
Basic earnings per common share   $ 0.38     $ 0.32     $ 1.11     $ 0.86  
Diluted earnings per common share(1)   $ 0.38     $ 0.32     $ 1.11     $ 0.86  
Dividend payout ratio     39.5 %     40.6 %     40.5 %     45.3 %