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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