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LONG-TERM BORROWINGS (Details) | 1 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Apr. 30, 2016 USD ($) shares | Jan. 31, 2015 USD ($) shares $ / shares | Apr. 30, 2017 USD ($) | Jan. 29, 2017 USD ($) | Oct. 30, 2016 USD ($) | Mar. 31, 2011 $ / shares
Long-term borrowings [Abstract] |  |  |  |  |  |
Long-term debt and capital lease obligations |  |  | $ 64,650,000 |  | $ 67,288,000 |
Less current portion |  |  | 5,503,000 |  | 5,428,000 |
Long-term debt and capital lease obligations non current |  |  | 59,147,000 |  | 61,860,000 |
Debt Issuance Costs [Abstract] |  |  |  |  |  |
Other Assets |  |  | 3,865,000 |  | 3,792,000 |
Long-term Borrowings |  |  | $ 59,147,000 |  | 61,860,000 |
Credit Facility [Member] |  |  |  |  |  |
Long-term borrowings [Abstract] |  |  |  |  |  |
Maturity date of debt |  |  | Dec. 31, 2018 |  |  |
Current borrowing capacity |  |  | $ 50,000,000 |  |  |
Maximum borrowing capacity |  |  | 75,000,000 |  |  |
Amount outstanding under credit facility |  |  | 0 |  |  |
Available borrowing capacity |  |  | $ 50,000,000 |  |  |
Interest rate |  |  | 2.24% |  |  |
ASU 2015-03 [Member] | Previously Reported [Member] |  |  |  |  |  |
Long-term borrowings [Abstract] |  |  |  |  |  |
Long-term debt and capital lease obligations non current |  |  |  | $ 62,139,000 |  |
Debt Issuance Costs [Abstract] |  |  |  |  |  |
Other Assets |  |  |  | 4,071,000 |  |
Long-term Borrowings |  |  |  | 62,139,000 |  |
ASU 2015-03 [Member] | Change Due to Adoption [Member] |  |  |  |  |  |
Long-term borrowings [Abstract] |  |  |  |  |  |
Long-term debt and capital lease obligations non current |  |  |  | (279,000) |  |
Debt Issuance Costs [Abstract] |  |  |  |  |  |
Other Assets |  |  |  | (279,000) |  |
Long-term Borrowings |  |  |  | (279,000) |  |
ASU 2015-03 [Member] | Retrospectively Adjusted [Member] |  |  |  |  |  |
Long-term borrowings [Abstract] |  |  |  |  |  |
Long-term debt and capital lease obligations non current |  |  |  | 61,860,000 |  |
Debt Issuance Costs [Abstract] |  |  |  |  |  |
Other Assets |  |  |  | 3,792,000 |  |
Long-term Borrowings |  |  |  | $ 61,860,000 |  |
3.25% Convertible Senior Notes due on April 2019 [Member] |  |  |  |  |  |
Long-term borrowings [Abstract] |  |  |  |  |  |
Convertible debt |  |  | $ 57,279,000 |  | 57,221,000 |
Interest rate percentage |  |  | 3.25% |  |  |
Maturity date of debt |  |  | Apr. 01, 2019 |  |  |
Face amount of debt |  |  | $ 57,500,000 |  |  |
Number of shares each note is convertible to (in shares) | shares |  | 96 |  |  |  |
Face amount of each note converted |  | $ 1,000 |  |  |  |
Conversion price per share (in dollars per share) | $ / shares |  | $ 10.37 |  |  |  |
3.25% Convertible Senior Notes due in April 2016 [Member] |  |  |  |  |  |
Long-term borrowings [Abstract] |  |  |  |  |  |
Interest rate percentage | 3.25% |  |  |  |  |
Maturity date of debt | Apr. 01, 2016 |  |  |  |  |
Face amount of debt | $ 57,500,000 |  |  |  |  |
Number of shares each note is convertible to (in shares) | shares | 96 |  |  |  |  |
Face amount of each note converted | $ 1,000 |  |  |  |  |
Conversion price per share (in dollars per share) | $ / shares |  |  |  |  |  | $ 10.37
2.77% Capital Lease Obligation Payable through July 2018 [Member] |  |  |  |  |  |
Long-term borrowings [Abstract] |  |  |  |  |  |
Long-term debt and capital lease obligations |  |  | $ 7,371,000 |  | $ 10,067,000 |
Interest rate percentage |  |  | 2.77% |  |  |
Maturity date of debt |  |  | Jul. 31, 2018 |  |  |
Face amount of debt |  |  | $ 26,400,000 |  |  |
Repayment period of debt |  |  | 5 years |  |  |
Periodic payments |  |  | $ 500,000 |  |  |
Frequency of periodic payment |  |  | per month |  |  |
Amount payable through the end of lease term |  |  | $ 7,500,000 |  |  |
Interest included in lease payments |  |  | $ 100,000 |  |  |

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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