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Other Assets, net (Tables) | 9 Months Ended
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Jul. 31, 2012
Other Assets, net [Abstract] |
Schedule of Other Current Assets [Table Text Block] | Other assets, net at July 31, 2012 and October 31, 2011 consisted of the following:
| July 31, 2012 |  | October 31, 2011
Long-term stack residual value (1) | $ | 14,530 |  |  | $ | 15,092 |
Other (2) | 1,142 |  |  | 1,199 |
Other Assets, net | $ | 15,672 |  |  | $ | 16,291 |
(1) | Relates to stack replacements performed under the Company's 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 $6.9 million and $2.4 million for the periods ended July 31, 2012 and October 31, 2011, respectively.
(2) | Includes security deposits, notes receivable and interest receivable.

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- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 + Details
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