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Note 7. Goodwill (Tables)
12 Months Ended
Sep. 30, 2012
Schedule of Goodwill [Table Text Block]
    September 30,  
   
2012
   
2011
 
             
Balance at beginning of period
  $ 20,122     $ 20,036  
Acquisitions
    1,175       -  
Contingent acquisition payments
    248       3  
Purchase price allocation adjustments
    -       83  
Balance at end of period
  $ 21,545     $ 20,122