Accrued Liabilities (Details) - USD ($) $ in Thousands		12 Months Ended
		Oct. 31, 2016	Oct. 31, 2015
Accrued Liabilities [Abstract]
Accrued Payroll and Employee Benefits		$ 4,183	$ 3,914
Product Warranty Accrual	[1]	516	964
Accrued material purchase	[2]	6,908	7,568
Accrued service and performance	[3]	6,030	3,437
Other Accrued Liabilities, Current		3,263	3,292
Accrued Liabilities, Current		20,900	19,175
Product Warranty Accrual, Warranties Issued		300	600
Product Warranty Accrual, Payment and Adjustments		700	800
Increase in reserve for service agreement costs		1,900
Reserve for long term service agreement		2,700	800
Reserve for Performance Guarantees		$ 3,300	$ 2,600

[1] Activity in the accrued product warranty costs during the fiscal year ended October 31, 2016 and 2015 included additions for estimates of potential future warranty obligations of $0.3 million and $0.6 million, respectively, on contracts in the warranty period and reductions related to actual warranty spend of $0.7 million and $0.8 million, respectively, as contracts progress through the warranty period or are beyond the warranty period.

[2] The Company acts as a procurement agent for POSCO under the Integrated Global Supply Chain Plan ("IGSCP") whereby the Company procures materials on POSCO's behalf for its production facility. The 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 $1.9 million from $0.8 million as of October 31, 2015 to $2.7 million as of October 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 $3.3 million as of October 31, 2016 based on the minimum output falling below the contract requirements for certain contracts offset by guarantee payments to customers.