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STOCK-BASED COMPENSATION (Details) (USD $)
3 Months Ended 12 Months Ended
Jan. 28, 2007
day
Oct. 30, 2011
Stock options
   
Stock-based compensation    
Vesting period low end of range   6M
Vesting period high end of the range   4Y
Stock option expiration period   10Y
Number of options granted (pre-split) during one-time stock option grant to full time employees of the company on January 8, 2007 100  
The terms under which the universal stock option grant will vest This grant was to vest upon the earlier of five years or attainment of closing stock price of $50.00 per share (pre-split) for five consecutive trading days, and had an expiration of ten years after the grant date.  
The per share closing price of common stock on attainment of which the grants will vest $ 50.00  
Number of consecutive trading days during which the closing price of the entity's common stock must exceed the specific price in order for the granted stocks to get vested (in days) 5  
Nonvested shares
   
Stock-based compensation    
Vesting period for nonvested shares issued after September 26, 2010   1Y
Vesting period for nonvested shares issued on or before September 26, 2010   5Y