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Note 2 - Earnings Per Common Share (Tables)
6 Months Ended
Jun. 30, 2014
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

Three Months

   

Six Months

 
   

Ended June 30,

   

Ended June 30,

 

(In thousands, except per share amounts)

 

2014

   

2013

   

2014

   

2013

 

Numerator:

                               

Net income

  $ 7,926     $ 7,667     $ 13,213     $ 14,869  

Denominator:

                               

Basic earnings per common share - weighted-average shares

    33,369       33,210       33,355       33,196  

Effect of dilutive stock options

    327       168       307       148  

Diluted earnings per common share - weighted-average shares and assumed conversions

    33,696       33,378       33,662       33,344  
                                 

Basic earnings per common share

  $ 0.24     $ 0.23     $ 0.40     $ 0.45  

Diluted earnings per common share

  $ 0.24     $ 0.23     $ 0.39     $ 0.45