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Note A - Organization and Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Jun. 30, 2017
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
For
the Years Ended June 30,
  
   
201
7
    
201
6
  
Numerator
  
 
 
 
  
 
 
 
Net income
   $
7,235
     $
9,546
  
Denominator
  
 
 
 
  
 
 
 
Basic weighted average common shares outstanding
    
6,577
      
6,524
  
Dilutive effect of stock opt
ions and restricted stock shares
    
79
      
117
  
Diluted weighted average common shares outstanding
    
6,656
      
6,641
  
Basic net income per common share
   $
1.10
     $
1.46
  
Diluted net income per common share
   $
1.09
     $
1.44