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Other Assets, net
 6 Months Ended
Apr. 30, 2012
Other Assets, net [Abstract]  
Other Assets, net
Other Assets, net
Other assets, net at April 30, 2012 and October 31, 2011 consisted of the following:
 
 
April 30,
2012

 
October 31,
2011

Long-term stack residual value (1)
$
16,023

 
$
15,092

Other (2)
1,123

 
1,199

Other Assets, net
$
17,146

 
$
16,291

 
(1)
Relates to stack replacements performed under the Company's long-term service agreements. The cost of the stack replacement is recorded as a long term asset and is depreciated over its expected life. If the Company does not obtain rights to title from the customer, the cost of the stack is expensed at the time of restack. Accumulated depreciation was $5.3 million and $2.4 million for the periods ended April 30, 2012 and October 31, 2011, respectively.
(2)
Includes security deposits, notes receivable and interest receivable.