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Accrued Liabilities (Details) - USD ($)
$ in Thousands
 9 Months Ended
Jul. 31, 2016
Oct. 31, 2015
Accrued Liabilities, Current [Abstract]    
Accrued payroll and employee benefits $ 4,930 $ 3,914
Reserve for product warranty costs [1] 609 964
Accrued material purchase [2] 4,908 7,568
Reserve for service agreement costs [3] 5,874 3,437
Accrued taxes, legal, professional and other 3,399 3,292
Accrued Liabilities, Current 19,720 19,175
Product Warranty Accrual, Warranties Issued 200  
Product Warranty Accrual, Payment and Adjustments 600  
Loss on Contracts 2,000  
loss reserve on service agreements 2,800 800
reserve for performance guarantees $ 3,100 $ 2,600
[1] Activity in the accrued product warranty costs for the nine months ended July 31, 2016 included additions for estimates of future warranty obligations of $0.2 million on contracts in the warranty period and reductions related to actual warranty spend of $0.6 million as contracts progress through the warranty period or are beyond the warranty period.
[2] The Company acts as a procurement agent for POSCO Energy under an Integrated Global Supply Chain Agreement whereby the Company procures materials on POSCO's behalf for their Asian production facility. This liability represents amounts received for the purchase of materials on behalf of POSCO. Amounts due to vendors is recorded as Accounts payable.
[3] Activity in service agreement costs represents an increase in loss accruals on service contracts of $2.0 million from $0.8 million as of October 31, 2015 to $2.8 million as of July 31, 2016. The increase primarily relates to renewals of legacy service contracts. The accruals for performance guarantees also increased from $2.6 million as of October 31, 2015 to $3.1 million as of July 31, 2016 based on the minimum output falling below the contract requirements for certain contracts offset by guarantee payments to customers.