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COMMITMENTS AND CONTINGENCIES (Tables)
6 Months Ended
Mar. 31, 2013
COMMITMENTS AND CONTINGENCIES [Abstract]  
Schedule of product warranty reserve activity
We maintain a warranty reserve that reflects management's best estimate of the cost to replace product that does not meet customers' specifications and performance requirements, and costs related to such replacement.  The warranty reserve is based upon a historical product replacement rate, adjusted for any specific known conditions or circumstances.  Additions and deductions to the warranty reserve are recorded in cost of goods sold.  Our warranty reserve requirements changed during the first six months of fiscal 2013 as follows:

Balance as of September 30, 2012
 
$
359
 
Reserve for product warranty during the reporting period
  
426
 
Settlement of warranty
  
(495
)
Balance as of March 31, 2013
 
$
290