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Note A - Basis of Presentation and Summary of Significant Accounting Policies (Tables)
 3 Months Ended
Sep. 30, 2016
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
Three Months Ended
September 30,
 
 
 
201
6
 
 
201
5
 
Numerator
 
 
 
 
 
 
 
 
Net income
   $ 2,490     $ 1,213  
                 
Denominator
 
 
 
 
 
 
 
 
Basic weighted average common shares outstanding
     6,558       6,521  
Dilutive effect of stock options
     89       174  
Diluted weighted average common shares outstanding
     6,647       6,695  
                 
Basic net income per common share
   $ 0.38     $ 0.19  
                 
Diluted net income per common share
   $ 0.37     $ 0.18