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Accrued Liabilities (Details) (USD $)
 9 Months Ended
Jul. 31, 2014
Oct. 31, 2013
Accrued Liabilities, Current [Abstract]    
Accrued payroll and employee benefits $ 4,294,000 [1] $ 4,647,000 [1]
Accrued contract and operating costs 34,000 [2] 87,000 [2]
Reserve for product warranty costs 1,316,000 [3] 860,000 [3]
Reserve for service agreement costs 3,670,000 [4] 4,186,000 [4]
Reserve for repair and upgrade program and modules due POSCO Energy 0 [5] 7,267,000 [5]
Accrued taxes, legal, professional and other 2,304,000 [6] 4,865,000 [6]
Accrued Liabilities, Current 11,618,000 21,912,000
Product Warranty Accrual, Warranties Issued 2,600,000  
Product Warranty Accrual, Payment and Adjustments 2,200,000  
Loss Reserve on Service Agreements 2,900,000 3,700,000
Reserve for Performance Guarantees $ 800,000 $ 500,000
[1] Balance relates to amounts owed to employees for compensation and benefits as of the end of the period.
[2] Balance includes estimated losses accrued on product sales contracts.
[3] Activity in the accrued product warranty costs for the nine months ended July 31, 2014 included additions for estimates of potential future warranty obligations of $2.6 million on contracts in the warranty period and reductions related to actual warranty spend of $2.2 million as contracts progress through the warranty period or are beyond the warranty period.
[4] As of July 31, 2014 and October 31, 2013, the loss accrued on SA's totaled $2.9 million and $3.7 million, respectively. Also included in this line item is an accrual for performance guarantees penalties under the terms of our customer contracts, which based on our ongoing analysis of historical fleet performance, totaled $0.8 million and $0.5 million as of July 31, 2014 and October 31, 2013, respectively.
[5] October 31, 2013 related to three replacement modules due to POSCO Energy, which were delivered in the first quarter of 2014.
[6] Balance includes accrued sales, use and payroll taxes as well as legal, professional and other expense accruals as of the end of the period.