FAIR VALUE MEASUREMENTS (Details) (USD $) In Thousands, unless otherwise specified	Jan. 31, 2015	Jul. 31, 2014
Available-for-sale securities:
Securities	$ 61,230us-gaap_AvailableForSaleSecurities	$ 69,839us-gaap_AvailableForSaleSecurities
Trading Securities [Abstract]
Trading Securities	817us-gaap_TradingSecurities	819us-gaap_TradingSecurities
Fair Value, Measurements, Recurring [Member]
Trading Securities [Abstract]
Trading Securities	817	819
Derivative financial instruments:
Foreign exchange forward contracts	7,893	5,931
Derivative financial instruments:
Foreign exchange forward contracts	3,351	1,726
Fair Value, Measurements, Recurring [Member] \| Equity Securities [Member]
Available-for-sale securities:
Securities	860	4,748
Fair Value, Measurements, Recurring [Member] \| Corporate Debt Securities [Member]
Available-for-sale securities:
Securities	28,898	30,243
Fair Value, Measurements, Recurring [Member] \| U.S. Treasury [Member]
Available-for-sale securities:
Securities	10,663	9,724
Fair Value, Measurements, Recurring [Member] \| Federal Agency [Member]
Available-for-sale securities:
Securities	12,591	13,719
Fair Value, Measurements, Recurring [Member] \| Mortgage-backed [Member]
Available-for-sale securities:
Securities	8,218	11,405
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Trading Securities [Abstract]
Trading Securities	817	819
Derivative financial instruments:
Foreign exchange forward contracts	0	0
Derivative financial instruments:
Foreign exchange forward contracts	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Equity Securities [Member]
Available-for-sale securities:
Securities	860	4,748
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Corporate Debt Securities [Member]
Available-for-sale securities:
Securities	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| U.S. Treasury [Member]
Available-for-sale securities:
Securities	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Federal Agency [Member]
Available-for-sale securities:
Securities	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Mortgage-backed [Member]
Available-for-sale securities:
Securities	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Trading Securities [Abstract]
Trading Securities	0	0
Derivative financial instruments:
Foreign exchange forward contracts	7,893	5,931
Derivative financial instruments:
Foreign exchange forward contracts	3,351	1,726
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Equity Securities [Member]
Available-for-sale securities:
Securities	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Corporate Debt Securities [Member]
Available-for-sale securities:
Securities	28,898	30,243
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| U.S. Treasury [Member]
Available-for-sale securities:
Securities	10,663	9,724
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Federal Agency [Member]
Available-for-sale securities:
Securities	12,591	13,719
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Mortgage-backed [Member]
Available-for-sale securities:
Securities	8,218	11,405
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Trading Securities [Abstract]
Trading Securities	0	0
Derivative financial instruments:
Foreign exchange forward contracts	0	0
Derivative financial instruments:
Foreign exchange forward contracts	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Equity Securities [Member]
Available-for-sale securities:
Securities	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Corporate Debt Securities [Member]
Available-for-sale securities:
Securities	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| U.S. Treasury [Member]
Available-for-sale securities:
Securities	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Federal Agency [Member]
Available-for-sale securities:
Securities	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Mortgage-backed [Member]
Available-for-sale securities:
Securities	0	0
Money Market Funds [Member] \| Fair Value, Measurements, Recurring [Member]
Financial assets carried at fair value
Money market funds	6,951	4,860
Money Market Funds [Member] \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Financial assets carried at fair value
Money market funds	6,951	4,860
Money Market Funds [Member] \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Financial assets carried at fair value
Money market funds	0	0
Money Market Funds [Member] \| Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Financial assets carried at fair value
Money market funds	$ 0	$ 0

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash

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-Name Accounting Standards Codification

-Glossary Cash Equivalents

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Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

+ References

No definition available.

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Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

+ References

No definition available.

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- Definition

Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 1

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-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.4)

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-Glossary Trading Securities

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