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LONG-TERM BORROWINGS (Details) (USD $)
 1 Months Ended 1 Months Ended 6 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 1 Months Ended 3 Months Ended 6 Months Ended
Apr. 28, 2013
Oct. 28, 2012
Mar. 25, 2012
Credit Facility [Member]
Apr. 28, 2013
Credit Facility [Member]
Mar. 31, 2011
3.25% convertible senior notes due on April 1, 2016 [Member]
Apr. 28, 2013
3.25% convertible senior notes due on April 1, 2016 [Member]
Oct. 28, 2012
3.25% convertible senior notes due on April 1, 2016 [Member]
Apr. 28, 2013
Term Loan [Member]
Oct. 28, 2012
Term Loan [Member]
Sep. 30, 2009
5.5% convertible senior notes due on October 1, 2014 [Member]
Apr. 28, 2013
5.5% convertible senior notes due on October 1, 2014 [Member]
Oct. 28, 2012
5.5% convertible senior notes due on October 1, 2014 [Member]
Oct. 30, 2011
5.5% convertible senior notes due on October 1, 2014 [Member]
Apr. 30, 2011
3.09% capital lease obligation payable through March 2016 [Member]
Apr. 28, 2013
3.09% capital lease obligation payable through March 2016 [Member]
Oct. 28, 2012
3.09% capital lease obligation payable through March 2016 [Member]
Feb. 28, 2013
Capital lease obligation payable through 2018 [Member]
Apr. 28, 2013
Capital lease obligation payable through 2018 [Member]
Oct. 28, 2012
Capital lease obligation payable through 2018 [Member]
Apr. 28, 2013
4.75% financing loan with customer [Member]
Apr. 29, 2012
4.75% financing loan with customer [Member]
Apr. 28, 2013
4.75% financing loan with customer [Member]
Apr. 29, 2012
4.75% financing loan with customer [Member]
Oct. 28, 2012
4.75% financing loan with customer [Member]
Jan. 31, 2010
4.75% financing loan with customer [Member]
Long-term borrowings [Abstract]                                                  
Long-term debt and capital lease obligations $ 179,821,000 $ 176,737,000       $ 115,000,000 $ 115,000,000 $ 22,500,000 $ 23,750,000   $ 22,054,000 $ 22,054,000     $ 13,106,000 $ 15,175,000   $ 6,916,000 $ 0 $ 245,000   $ 245,000   $ 758,000  
Less current portion 10,473,000 7,781,000                                              
Long-term debt and capital lease obligations non current 169,348,000 168,956,000                                              
Interest rate percentage (in hundredths)           3.25%         5.50%       3.09%         4.75%   4.75%      
Maturity date of debt           Apr. 01, 2016   Mar. 01, 2017     Oct. 01, 2014       Mar. 31, 2016                    
Reduction in interest rate (in hundredths)     0.25%                                            
Original face amount of debt         115,000,000     25,000,000   57,500,000       21,200,000       27,000,000             3,700,000
Variable interest rate (in hundredths)       2.50%       2.50%                                  
Interest rate determination date                                   Nov. 03, 2013              
Periodic payments               600,000           400,000                      
Frequency of periodic payment               quarterly payments           monthly payments                      
Amortization period of debt               10 years                                  
Repayment period of debt                           5 years     5 years                
Amount outstanding under credit facility       0                                          
Remaining borrowing capacity under credit facility       30,000,000                                          
Conversion price per share (in dollars per share)         $ 10.37         $ 5.08                              
Proceeds from notes payable, net         110,700,000         54,900,000                              
Capital lease obligations repaid         19,800,000                                        
Face amount of each note converted         1,000         1,000                              
Number of shares each note is convertible to (in shares)         96.3879         196.7052                              
Face amount of debt repurchased                         35,400,000                        
Amount payable through the end of lease term                             13,700,000                    
Interest included in lease payments                             600,000                    
Value of product shipped for repayment of loan                                       $ 300,000 $ 200,000 $ 500,000 $ 500,000    
Estimated date of loan repayment                                           Nov. 03, 2013