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Product Warranty Obligation (Tables)
 12 Months Ended
Sep. 30, 2012
Product Warranties Disclosures [Abstract]  
Schedule of Product Warranty Accrual
The following table summarizes the activity associated with the product warranty accrual (in thousands) and is listed on our Consolidated Balance Sheets under Current Liabilities:
 
Balance at
 
Warranties
 
Settlements
 
Balance at
Fiscal year
October 1
 
issued
 
made
 
September 30
2012
$
941

 
$
730

 
$
(650
)
 
$
1,021

2011
$
877

 
$
885

 
$
(821
)
 
$
941

2010
$
970

 
$
738

 
$
(831
)
 
$
877