FAIR VALUE MEASUREMENTS (Details) (USD $) | Oct. 31, 2013 | Jul. 31, 2013 |
In Thousands, unless otherwise specified |
Available-for-sale securities: | ' | ' |
Securities | $69,981 | $70,744 |
Trading Securities [Abstract] | ' | ' |
Trading Securities | 201 | 190 |
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | ' | ' |
Trading Securities [Abstract] | ' | ' |
Trading Securities | 201 | 190 |
Derivative financial instruments: | ' | ' |
Foreign exchange forward contracts | 1,180 | 301 |
Derivative financial instruments: | ' | ' |
Foreign exchange forward contracts | 1,395 | 3,066 |
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Equity Securities [Member] | ' | ' |
Available-for-sale securities: | ' | ' |
Securities | 185 | 176 |
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Corporate Debt Securities [Member] | ' | ' |
Available-for-sale securities: | ' | ' |
Securities | 30,749 | 32,393 |
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. Treasury [Member] | ' | ' |
Available-for-sale securities: | ' | ' |
Securities | 11,287 | 11,543 |
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Federal Agency [Member] | ' | ' |
Available-for-sale securities: | ' | ' |
Securities | 20,086 | 20,642 |
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Mortgage-backed [Member] | ' | ' |
Available-for-sale securities: | ' | ' |
Securities | 5,975 | 5,990 |
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial Paper [Member] | ' | ' |
Available-for-sale securities: | ' | ' |
Securities | 1,699 | ' |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' |
Trading Securities [Abstract] | ' | ' |
Trading Securities | 199 | 190 |
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 | 185 | 176 |
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 1 [Member] | Commercial Paper [Member] | ' | ' |
Available-for-sale securities: | ' | ' |
Securities | 0 | ' |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' |
Trading Securities [Abstract] | ' | ' |
Trading Securities | 2 | 0 |
Derivative financial instruments: | ' | ' |
Foreign exchange forward contracts | 1,180 | 301 |
Derivative financial instruments: | ' | ' |
Foreign exchange forward contracts | 1,395 | 3,066 |
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 | 30,749 | 32,393 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. Treasury [Member] | ' | ' |
Available-for-sale securities: | ' | ' |
Securities | 11,287 | 11,543 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Federal Agency [Member] | ' | ' |
Available-for-sale securities: | ' | ' |
Securities | 20,086 | 20,642 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Mortgage-backed [Member] | ' | ' |
Available-for-sale securities: | ' | ' |
Securities | 5,975 | 5,990 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial Paper [Member] | ' | ' |
Available-for-sale securities: | ' | ' |
Securities | 1,699 | ' |
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 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Paper [Member] | ' | ' |
Available-for-sale securities: | ' | ' |
Securities | 0 | ' |
Money Market Funds [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | ' | ' |
Financial assets carried at fair value | ' | ' |
Money market funds | 2,786 | 6,404 |
Money Market Funds [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' |
Financial assets carried at fair value | ' | ' |
Money market funds | 2,786 | 6,404 |
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 |