FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	12 Months Ended
Oct. 31, 2018	Apr. 28, 2019
Fair Value, Assets and Liability [Abstract]
Total assets	$ 0	$ 0
Total liabilities	$ 0	$ 0
3.25% Convertible Senior Notes Matured 2019 [Member]
Fair and carrying values of the Company's convertible senior notes [Abstract]
Interest rate percentage	3.25%
Maturity date of debt	Apr. 01, 2019
Fair Value [Member] \| 3.25% Convertible Senior Notes Matured 2019 [Member]
Fair and carrying values of the Company's convertible senior notes [Abstract]
Convertible senior notes	$ 62,094
Carrying Value [Member] \| 3.25% Convertible Senior Notes Matured 2019 [Member]
Fair and carrying values of the Company's convertible senior notes [Abstract]
Convertible senior notes	$ 57,453

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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+ References

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Fair value of financial and nonfinancial obligations.

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