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Note A - Organization and Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Jun. 30, 2019
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
For the Years Ended June 30,
  
   
201
9
    
2018
  
Numerator
  
 
 
 
  
 
 
 
Net income
   $
6,541
     $
5,051
  
Denominator
  
 
 
 
  
 
 
 
Basic weighted average common shares outstanding
    
6,809
      
6,641
  
Dilutive effect of stock options and restricted stock shares
    
289
      
245
  
Diluted weighted average common shares outstanding
    
7,098
      
6,886
  
Basic net income per common share
   $
0.96
     $
0.76
  
Diluted net income per common share
   $
0.92
     $
0.73