LONG-TERM BORROWINGS (Details) (USD $)	1 Months Ended	12 Months Ended				12 Months Ended		1 Months Ended	12 Months Ended		12 Months Ended			1 Months Ended			12 Months Ended		1 Months Ended	12 Months Ended		12 Months Ended
	Mar. 31, 2011	Oct. 28, 2012	Oct. 30, 2011	Oct. 31, 2010	Mar. 31, 2011 Credit Facility [Member]	Oct. 28, 2012 Amended Credit Facility [Member]	Mar. 31, 2011 Amended Credit Facility [Member]	Mar. 31, 2011 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]	Oct. 30, 2011 3.25% convertible senior notes due on April 1, 2016 [Member]	Oct. 28, 2012 Term Loan [Member]	Apr. 29, 2012 Term Loan [Member]	Oct. 30, 2011 Term Loan [Member]	Jun. 30, 2011 5.50% convertible senior notes due on October 1, 2014 [Member]	Mar. 31, 2011 5.50% convertible senior notes due on October 1, 2014 [Member]	Sep. 30, 2009 5.50% convertible senior notes due on October 1, 2014 [Member]	Oct. 28, 2012 5.50% convertible senior notes due on October 1, 2014 [Member]	Oct. 30, 2011 5.50% convertible senior notes due on October 1, 2014 [Member]	Apr. 30, 2011 3.09% capital lease obligation payable through March 2016 [Member]	Oct. 28, 2012 3.09% capital lease obligation payable through March 2016 [Member]	Oct. 30, 2011 3.09% capital lease obligation payable through March 2016 [Member]	Oct. 28, 2012 4.75% financing loan with customer [Member]	Oct. 30, 2011 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		$ 176,737,000	$ 158,160,000						$ 115,000,000	$ 115,000,000	$ 23,750,000		$ 0				$ 22,054,000	$ 22,054,000		$ 15,175,000	$ 19,218,000	$ 758,000	$ 1,888,000
Less current portion		7,781,000	5,583,000
Long-term debt and capital lease obligations non current		168,956,000	152,577,000
Interest rate percentage (in hundredths)									3.25%								5.50%			3.09%		4.75%
Variable interest rate (in hundredths)											2.50%
Long-term borrowings maturing in 2013		3,258,000
Long-term borrowings maturing in 2014		24,554,000
Long-term borrowings maturing in 2015		2,500,000
Long-term borrowings maturing in 2016		117,500,000
Long-term borrowings maturing in 2017		13,750,000
Minimum lease payments under the Company's capital lease obligations [Abstract]
2013		4,962,000
2014		4,580,000
2015		4,580,000
2016		1,907,000
Future minimum payments due		16,029,000
Less interest		854,000
Net minimum lease payments under capital leases		15,175,000
Less current portion of net minimum lease payments		4,523,000
Long-term portion of minimum lease payments		10,652,000
Maturity date of debt						Apr. 30, 2015			Apr. 01, 2016		Mar. 01, 2017						Oct. 01, 2014			Mar. 30, 2016
Original face amount of debt											25,000,000	25,000,000				57,500,000			21,200,000					3,700,000
Periodic payments											600,000								400,000
Frequency of periodic payment											quarterly payments								per month
Amortization period of debt											10 years
Aggregate commitments of the lenders					65,000,000		30,000,000
Maximum amount of financed capital assets						75,000,000
Amount of investment basket					15,000,000	25,000,000
Credit facility interest rate (in hundredths)						2.50%
Amount outstanding under credit facility						0
Remaining borrowing capacity under credit facility						30,000,000
Face amount of each note converted								1,000								1,000
Number of shares each note is convertible to (in shares)								96.3879								196.7052
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 debt repurchased														5,000,000	30,400,000			35,400,000
Common stock issued to extinguish debt (in shares)														700,000	4,500,000
Common stock issued to extinguish debt			45,637,000											6,500,000	39,200,000
Cash paid for convertible notes acquired														3,200,000	19,700,000
Number of shares issued for each note converted (in shares)														147.529	147.529
Cash paid for each note converted														647	647
Debt extinguishment loss		0	(35,259,000)	0										(5,000,000)	(30,100,000)
Write off of deferred financing fees														300,000	1,700,000
Repayment period																			5 years
Amount payable through the end of lease term																				16,000,000
Value of product shipped for repayment of loan																						1,000,000	1,100,000
Estimated date of loan repayment																						2013-11-03
Interest payments		6,300,000	9,700,000	7,800,000
Deferred financing cost payments		$ 200,000	$ 4,300,000	$ 1,300,000