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Note H - Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2016
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
   
2016
   
2015
   
2016
   
2015
 
   
(in thousands, except per share data)
 
Net income
  $ 3,992     $ 7,039     $ 6,927     $ 12,408  
                                 
Basic weighted average common shares outstanding
    6,551       7,431       6,836       7,428  
Dilutive effect of common stock equivalents
    21       43       22       43  
Diluted weighted average common shares outstanding
    6,572       7,474       6,858       7,471  
                                 
Basic earnings per share
  $ 0.61     $ 0.95     $ 1.01     $ 1.67  
Diluted earnings per share
  $ 0.61     $ 0.94     $ 1.01     $ 1.66