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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 |  |
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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 |  |  |

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