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Accrued Liabilities (Details) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2011 | Oct. 31, 2013 | Oct. 31, 2012
Accrued Liabilities, Current [Abstract] |  |  |
Accrued Payroll and Employee Benefits |  | $ 4,647,000 | $ 3,907,000
Accrued Contract and Operating Costs |  | 87,000 | 39,000
Product Warranty Accrual |  | 860,000 | 2,317,000
Reserve for Service Agreement Costs |  | 4,186,000 | 7,222,000
Reserve for Repair and Upgrade Program |  | 7,267,000 | 4,753,000
Other Accrued Liabilities, Current |  | 4,865,000 | 2,027,000
Accrued Liabilities, Current |  | 21,912,000 | 20,265,000
Product Warranty Accrual, Warranties Issued |  | 1,200,000 | 3,100,000
Product Warranty Accrual, Payment and Adjustments |  | 300,000 | 1,900,000
Loss Reserve on Service Agreements |  | 3,700,000 | 5,000,000
Reserve for Performance Guarantees |  | 500,000 | 2,200,000
Charge for Repair and Upgrade | $ 8,800,000 |  |

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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(5)) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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