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FINANCIAL INSTRUMENTS (Tables)
 12 Months Ended
Jul. 31, 2012
FAIR VALUE [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
The following table summarizes our financial assets and liabilities that were reported at fair value by level within the fair value hierarchy:
 
 
Fair Value at July 31, 2012
(in thousands)
 
 
Total
 
Level 1
 
Level 2
     Assets
 
 
 
 
 
 
     Cash equivalents
 
$
12,666

 
$
12,666

 
$
—

     Marketable equity securities
 
76

 
76

 
—

     Cash surrender value of life insurance
 
4,229

 
—

 
4,229