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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 5,970 $ 5,978
Accumulated Amortization (4,405) (4,132)
Net Intangible Assets 1,565 1,846
Customer Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets 373 374
Accumulated Amortization (223) (199)
Net Intangible Assets $ 150 $ 175
Weighted Average Amortization Period 15 years 15 years
Technology [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 708 $ 713
Accumulated Amortization (454) (402)
Net Intangible Assets $ 254 $ 311
Weighted Average Amortization Period 13 years 13 years
Noncompete    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 580 $ 580
Accumulated Amortization (261) (145)
Net Intangible Assets $ 319 $ 435
Weighted Average Amortization Period 5 years 5 years
Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 2,972 $ 2,972
Accumulated Amortization (2,860) (2,837)
Net Intangible Assets $ 112 $ 135
Weighted Average Amortization Period 6 years 6 years
Other    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 397 $ 397
Accumulated Amortization (373) (368)
Net Intangible Assets $ 24 $ 29
Weighted Average Amortization Period 8 years 8 years
Trademark/name    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 763 $ 765
Accumulated Amortization (234) (181)
Net Intangible Assets 529 584
Indefinite tradenames and trademarks $ 177 $ 177
Weighted Average Amortization Period 14 years 14 years