Stock Based Benefit Plans (Details 8) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2009
Information relating to the distribution of shares and the withholding of taxes on the RSUs
Shares issued	1,250	1,250	1,250
Restricted Stock Units in Lieu of Compensation [Member]
Information relating to the distribution of shares and the withholding of taxes on the RSUs
Shares withheld	741	924	836
Shares issued	8,975	2,749	1,509
Aggregate fair market value of shares withheld	15	17	15

Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 10

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 4, 5

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration