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INCOME TAXES, UNRECOGNIZED TAX BENEFIT (Details) $ in Millions | May. 31, 2013 USD ($)
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State and Local Jurisdiction [Member] |
Income Tax Contingency [Line Items] |
Income tax refund | $ 1.1

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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority. + 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 (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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Balance Type: | credit
Period Type: | instant

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- Details
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