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Note A - Basis of Presentation and Summary of Significant Accounting Policies (Tables)
 3 Months Ended
Sep. 30, 2015
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
Three Months Ended
September 30,
 
 
 
2015
 
 
2014
 
Numerator
 
 
 
 
 
 
 
 
Net income
   $ 1,213     $ 487  
                 
Denominator
 
 
 
 
 
 
 
 
Basic weighted average common shares outstanding
     6,521       6,836  
Dilutive effect of stock options
     174       38  
Diluted weighted average common shares outstanding
     6,695       6,874  
                 
Basic net income per common share
   $ 0.19     $ 0.07  
                 
Diluted net income per common share
   $ 0.18     $ 0.07