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EMPLOYEE BENEFITS - Additional Information (Detail) (USD $)
1 Months Ended 9 Months Ended
Jan. 01, 2012
Jan. 01, 2011
Jul. 31, 2012
Jul. 31, 2011
Defined Contribution Plan Disclosure [Line Items]        
Percentage of employer matching contribution 50.00% 25.00%    
Percentage of employee's annual earnings contributed 6.00% 6.00%    
Total contribution to all plans     $ 339,000 $ 200,000