XML 54 R21.htm IDEA: XBRL DOCUMENT v2.4.0.8
Product Warranties (Tables)
 3 Months Ended
Oct. 31, 2013
Product Warranties Disclosures [Abstract]  
Product warranty liability
The following table summarizes the activity related to the product warranty liability during the three months ended October 31, 2013 and 2012 (in thousands):
 
 
 
2013
 
2012
 
 
 
 
 
 
 
 
 
Beginning balance
 
$
156
 
$
166
 
Warranty cost incurred
 
 
(35)
 
 
(27)
 
Accrued warranty cost
 
 
17
 
 
40
 
Ending balance
 
$
138
 
$
179