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Note H - Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2015
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Months Ended
   
Nine Months Ended
 
   
September 30,
   
September 30,
 
   
2015
   
2014
   
2015
   
2014
 
   
(in thousands, except per share data)
 
                                 
Net income
  $ 5,795     $ 5,057     $ 18,203     $ 11,359  
                                 
Basic weighted average common shares outstanding
    7,186       7,993       7,346       7,990  
Dilutive effect of common stock equivalents
    33       39       39       44  
Diluted weighted average common shares outstanding
    7,219       8,032       7,385       8,034  
                                 
Basic earnings per share
  $ 0.81     $ 0.63     $ 2.48     $ 1.42  
Diluted earnings per share
  $ 0.80     $ 0.63     $ 2.46     $ 1.41