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Other Assets, net (Details) (USD $) | Apr. 30, 2013 | Oct. 31, 2012
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Other Assets, net [Abstract] |  |  |  |
Long-term stack residual value | $ 12,003,000 | [1] | $ 14,316,000 | [1]
Other Assets | 965,000 | [2] | 1,870,000 | [2]
Other assets, net | 12,968,000 |  | 16,186,000 |
Accumulated depreciation on long-term stacks | $ 9,500,000 |  | $ 7,600,000 |
[1] | Relates to stack replacements performed under the Company's SA's. 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 $9.5 million and $7.6 million for the periods ended April 30, 2013 and October 31, 2012, respectively.
[2] | Includes security deposits, notes receivable and interest receivable.

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- Definition long-term stack residual value + References No definition available. + Details
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- Definition Carrying amount as of the balance sheet date of noncurrent assets which have not been itemized or categorized in the footnotes to the financial statements and are a component of Other Assets, Noncurrent (OtherAssetsNoncurrent). Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). + References No definition available. + Details
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- Definition Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). + 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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