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Income Taxes (Details 3) | 12 Months Ended
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Nov. 30, 2012
United States - Federal Income Tax [Member] |
Summary of open tax years and ongoing tax examinations |
Examinations in Process | N/A
United States - Various States [Member] |
Summary of open tax years and ongoing tax examinations |
Examinations in Process | N/A
Initial examination period [Member] | United States - Federal Income Tax [Member] |
Summary of open tax years and ongoing tax examinations |
Open Tax Years | 2008
Initial examination period [Member] | United States - Various States [Member] |
Summary of open tax years and ongoing tax examinations |
Open Tax Years | 2007
Expiration examination period [Member] | United States - Federal Income Tax [Member] |
Summary of open tax years and ongoing tax examinations |
Open Tax Years | 2011
Expiration examination period [Member] | United States - Various States [Member] |
Summary of open tax years and ongoing tax examinations |
Open Tax Years | 2011

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- Definition Examination in process. + References No definition available. + Details
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- Details
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- Definition Tax year that remains open to examination under enacted tax laws, in CCYY format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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