Accrued Liabilities (Details) (USD $)	9 Months Ended
	Jul. 31, 2012		Oct. 31, 2011
Accrued Liabilities, Current [Abstract]
Employee-related Liabilities, Current	$ 3,396,000	[1]	$ 4,672,000	[1]
Accrued Contract and Operating Costs	44,000	[2]	88,000	[2]
Product Warranty Accrual	1,197,000	[3]	1,134,000	[3]
Reserve for Service Agreement Costs	9,429,000	[4]	11,096,000	[4]
Reserve for Repair and Upgrade Program	4,365,000	[5]	7,949,000	[5]
Other Accrued Liabilities, Current	2,023,000	[6]	1,955,000	[6]
Accrued Liabilities, Current	20,454,000		26,894,000
Product Warranty Accrual, Warranties Issued	500,000
Product Warranty Accrual, Payments	400,000
Loss Reserve on Service Agreements	6,900,000		8,900,000
Reserve for Performance Guarantees	2,500,000		2,200,000
Costs for Repair and Upgrades	$ 3,600,000

[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 nine months ended July 31, 2012 included additions for estimates of potential future warranty obligations of $0.5 million on contracts in the warranty period and reserve reductions related to actual warranty spend and reversals to income of $0.4 million as contracts progress through the warranty period or are beyond the warranty period.

[4] As of July 31, 2012, the loss reserve on service agreement contracts totaled $6.9 million compared to $8.9 million as of October 31, 2011. 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 $2.5 million and $2.2 million as of July 31, 2012 and October 31, 2011, respectively.

[5] For the nine months ended July 31, 2012, the Company incurred actual repair and upgrade costs of approximately $3.6 million.

[6] Balance includes accrued sales, use and payroll taxes as well as accrued legal, professional and other expenses as of the end of the period.