FINANCIAL INSTRUMENTS AND RISKS AND UNCERTAINTIES (Details Textuals) In Thousands	12 Months Ended
Jul. 31, 2011 USD ($)	Jul. 31, 2010 USD ($)	Jul. 31, 2009 USD ($)	Jul. 31, 2011 Jpy Loan Due Fiscal Year 2015 [Member] JPY (¥)
Notional amount of foreign currency forward contracts	$ 296,252
Fair value of foreign currency forward contracts	978
Loan obtained during the fourth quarter	35,185	798,290	171,010	9,000,000
Notional amount of foreign currency forward contracts entered during the period	$ 2,403,274	$ 1,427,295

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3255-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 18
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 19
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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Balance Type:	debit
Period Type:	duration