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Stock-Based Compensation (Details) (2005 Stock Incentive Plan [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
	Apr. 30, 2013
2005 Stock Incentive Plan [Member]
Stock option activity, related to 2005 Stock Incentive Plan
Outstanding, Number of Shares, beginning balance	35
Outstanding, Weighted-Average Exercise Price, beginning balance	$ 15.16
Exercised, Number of Shares	(4)
Exercised, Weighted-Average Exercise Price	$ 10.23
Exercised, Aggregate Intrinsic Value
Outstanding, Number of Shares, ending balance	31
Outstanding, Weighted-Average Exercise Price, ending balance	$ 15.66
Outstanding, Aggregate Intrinsic Value	873
Exercisable, Number of Shares	11
Exercisable, Weighted-Average Exercise Price	$ 19.05
Exercisable, Aggregate Intrinsic Value	$ 317

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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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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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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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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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