Stock-Based Compensation (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010
Stock option activity, related to 2005 Stock Incentive Plan
Granted, Number of Shares	70
Granted, Weighted-Average Exercise Price	$ 21.82
Granted, Weighted-Average Fair Value	$ 4.15
2005 Stock Incentive Plan [Member]
Stock option activity, related to 2005 Stock Incentive Plan
Outstanding, Number of Shares, beginning balance	72	87	284
Outstanding, Weighted-Average Exercise Price, beginning balance	$ 13.75	$ 13.89	$ 10.23
Granted, Number of Shares			10
Granted, Weighted-Average Exercise Price			$ 19.20
Granted, Weighted-Average Fair Value			$ 6.36
Exercised, Number of Shares	(37)	(15)	(207)
Exercised, Weighted-Average Exercise Price	$ 13.54	$ 14.58	$ 9.13
Outstanding, Number of Shares, ending balance	35	72	87
Outstanding, Weighted-Average Exercise Price, ending balance	$ 15.16	$ 13.75	$ 13.89
Outstanding, Aggregate Intrinsic Value	$ 824
Exercisable, Number of Shares	13
Exercisable, Weighted-Average Exercise Price	$ 18.37
Exercisable, Aggregate Intrinsic Value	$ 313

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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