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Receivables
3 Months Ended
Dec. 31, 2011
Accounts, Notes, Loans, and Financing Receivable Disclosure [Abstract]  
Receivables Disclosure [Text Block]
        
  December 31, September 30, 
  2011 2011 
 Trade$ 217,132 $ 203,038 
 Vendor rebates and programs  23,370   15,404 
    240,502   218,442 
 Allowance for doubtful accounts  (2,622)   (2,581) 
  $ 237,880 $ 215,861 
        

Product sales resulting from transactions with Banfield, The Pet Hospital (“Banfield”) were approximately 6% of total product sales during the three months ended December 31, 2011 and 2010, respectively. Approximately 7% and 8% of our trade receivables resulted from transactions with Banfield as of December 31, 2011 and September 30, 2011, respectively.