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Product Warranty Obligation (Tables)
 12 Months Ended
Sep. 30, 2017
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
2017
$
1,033

 
$
679

 
$
(725
)
 
$
987

2016
$
1,014

 
$
771

 
$
(752
)
 
$
1,033

2015
$
862

 
$
967

 
$
(815
)
 
$
1,014