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INCOME TAXES (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Nov. 30, 2017 | Oct. 31, 2020 | Jul. 31, 2020 | Apr. 30, 2020 | Jan. 31, 2020 | Oct. 31, 2019 | Jul. 31, 2019 | Apr. 30, 2019 | Jan. 31, 2019 | Oct. 31, 2020 | Oct. 31, 2019 | Dec. 31, 2018 | Oct. 31, 2018 | Dec. 31, 2017 | Oct. 31, 2017
Income Tax Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Tax Expense (Benefit) |  | $ (2,257,000) | $ (937,000) | $ (765,000) | $ (597,000) | $ (260,000) | $ 1,155,000 | $ 2,481,000 | $ 2,453,000 | $ (4,556,000) | $ 5,829,000 |  | $ 11,006,000 |  |
Effective Income Tax Rate Reconciliation, Percent |  |  |  |  |  |  |  |  |  | 42.00% | 25.00% |  | 34.00% |  |
Percentage of tax benefit recorded under Provisions of the CARES Act |  |  |  |  |  |  |  |  |  | 34.00% |  |  |  |  |
U.S. statutory rate | 35.00% |  |  |  |  |  |  |  |  | 21.00% | 21.00% | 21.00% | 23.00% | 34.00% |
Unrecognized Tax Benefits |  | 168,000 |  |  |  | 193,000 |  |  |  | $ 168,000 | $ 193,000 |  | $ 180,000 |  | $ 1,101,000
Valuation allowance |  | 2,164,000 |  |  |  | 2,227,000 |  |  |  | 2,164,000 | 2,227,000 |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards |  | 1,957,000 |  |  |  | $ 1,380,000 |  |  |  | 1,957,000 | $ 1,380,000 |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration |  | 6,800,000 |  |  |  |  |  |  |  | 6,800,000 |  |  |  |  |
Tax credits subject to expiration |  | 900,000 |  |  |  |  |  |  |  | 900,000 |  |  |  |  |
Unrecognized tax benefits, interest accrued |  | 36,000 |  |  |  |  |  |  |  | $ 36,000 |  |  |  |  |
Unrecognized Tax Benefits Expiration Term |  |  |  |  |  |  |  |  |  | expire between August 2021 and August 2024 |  |  |  |  |
Deferred Tax Assets for Research and Development Tax Credits |  | 900,000 |  |  |  |  |  |  |  | $ 900,000 |  |  |  |  |
Tax Credits Expiration Term |  |  |  |  |  |  |  |  |  | expire between years 2021 and 2030 |  |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 35.00% |  |  |  |  |  |  |  |  | 21.00% | 21.00% | 21.00% | 23.00% | 34.00% |
Expirations Within Five Years [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration |  | 5,100,000 |  |  |  |  |  |  |  | $ 5,100,000 |  |  |  |  |
Expiration maximum term |  |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |
Expirations After Six Years [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration |  | $ 1,700,000 |  |  |  |  |  |  |  | $ 1,700,000 |  |  |  |  |
Expiration minimum term |  |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |
Expiration maximum term |  |  |  |  |  |  |  |  |  | 20 years |  |  |  |  |

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