Accrued Liabilities (Details) (USD $)	12 Months Ended
	Oct. 31, 2014		Oct. 31, 2013
Accrued Liabilities [Abstract]
Accrued Payroll and Employee Benefits	$ 4,432,000		$ 4,647,000
Accrued Contract and Operating Costs	34,000		87,000
Product Warranty Accrual	1,156,000	[1]	860,000	[1]
Reserve for Service Agreement Costs	3,882,000		4,186,000
Reserve for Repair and Upgrade Program	0	[2]	7,267,000	[2]
Other Accrued Liabilities, Current	2,562,000		4,865,000
Accrued Liabilities, Current	12,066,000		21,912,000
Product Warranty Accrual, Warranties Issued	2,400,000		1,200,000
Product Warranty Accrual, Payment and Adjustments	$ 1,200,000		$ 300,000

[1] Activity in the accrued product warranty costs during the year ended October 31, 2014 and 2013 included additions for estimates of potential future warranty obligations of $2.4 million and $1.2 million, respectively, on contracts in the warranty period and reductions related to actual warranty spend of $1.2 million and $0.3 million, respectively, as contracts progress through the warranty period or are beyond the warranty period.

[2] The balance of the accrual at October 31, 2013 related to three replacement modules due to POSCO Energy, which were delivered in the first quarter of 2014.