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Accrued Liabilities (Details) (USD $)
 3 Months Ended
Jan. 31, 2014
Oct. 31, 2013
Accrued Liabilities, Current [Abstract]    
Accrued payroll and employee benefits $ 3,266,000 [1] $ 4,647,000 [1]
Accrued contract and operating costs 34,000 [2] 87,000 [2]
Reserve for product warranty costs 1,043,000 [3] 860,000 [3]
Reserve for service agreement costs 3,048,000 [4] 4,186,000 [4]
Reserve for repair and upgrade program and modules due POSCO Energy 389,000 [5] 7,267,000 [5]
Accrued taxes, legal, professional and other 2,819,000 [6] 4,865,000 [6]
Accrued Liabilities, Current 10,599,000 21,912,000
Product Warranty Accrual, Warranties Issued 1,200,000  
Product Warranty Accrual, Payment and Adjustments 1,000,000  
Loss Reserve on Service Agreements 2,200,000 3,700,000
Reserve for Performance Guarantees $ 900,000 $ 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 reserve for product warranty costs for the three months ended January 31, 2014 included additions for estimates of potential future warranty obligations of $1.2 million on contracts in the warranty period and reserve reductions related to actual warranty spend of $1.0 million as contracts progress through the warranty period or are beyond the warranty period.
[4] As of January 31, 2014 and October 31, 2013, the loss reserve on SA's totaled $2.2 million and $3.7 million, respectively. Also included in this line item is a reserve for performance guarantees penalties under the terms of our customer contracts, which based on our ongoing analysis of historical fleet performance, totaled $0.9 million and $0.5 million as of January 31, 2014 and October 31, 2013, respectively.
[5] The decrease in the reserve as of January 31, 2014 compared to October 31, 2013 is a result of three replacement modules having been provided to POSCO Energy under the terms of the Master Service Agreement with POSCO Energy.
[6] Balance includes accrued sales, use and payroll taxes as well as estimated legal, professional and other expense estimates as of the end of the period.