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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Oct. 31, 2020 | Oct. 31, 2019
Finite-Lived Intangible Assets [Line Items] |  |
Gross Intangible Assets | $ 5,978 | $ 4,870
Accumulated Amortization | (4,132) | (3,774)
Net Intangible Assets | 1,846 | 1,096
Customer Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Intangible Assets | 374 | 372
Accumulated Amortization | (199) | (173)
Net Intangible Assets | $ 175 | $ 199
Weighted Average Amortization Period | 15 years | 15 years
Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Intangible Assets | $ 713 | $ 683
Accumulated Amortization | (402) | (333)
Net Intangible Assets | $ 311 | $ 350
Weighted Average Amortization Period | 13 years | 13 years
Noncompete |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Intangible Assets | $ 580 |
Accumulated Amortization | (145) |
Net Intangible Assets | $ 435 |
Weighted Average Amortization Period | 5 years |
Patents [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Intangible Assets | $ 2,972 | $ 2,972
Accumulated Amortization | (2,837) | (2,813)
Net Intangible Assets | $ 135 | $ 159
Weighted Average Amortization Period | 6 years | 6 years
Other |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Intangible Assets | $ 397 | $ 375
Accumulated Amortization | (368) | (341)
Net Intangible Assets | $ 29 | $ 34
Weighted Average Amortization Period | 8 years | 8 years
Trademark/name |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Intangible Assets | $ 765 | $ 408
Accumulated Amortization | (181) | (114)
Net Intangible Assets | 584 | 294
Indefinite tradenames and trademarks | $ 177 | $ 60
Weighted Average Amortization Period | 14 years | 13 years

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