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Note A - Basis of Presentation and Summary of Significant Accounting Policies (Tables)
9 Months Ended
Mar. 31, 2014
Accounting Policies [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

Three Months Ended
March 31,

   

Nine Months Ended
March 31,

 
   

2014

   

2013

   

2014

   

2013

 

Numerator

                               

Net income

  $ 622     $ 178     $ 904     $ 977  

Denominator

                               

Basic weighted average common shares outstanding

    6,819       6,841       6,818       6,883  

Dilutive effect of stock options

    24       3       28       8  

Diluted weighted average common shares outstanding

    6,843       6,844       6,846       6,891  

Basic net income per common share

  $ 0.09     $ 0.03     $ 0.13     $ 0.14  

Diluted net income per common share

  $ 0.09     $ 0.03     $ 0.13     $ 0.14