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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Intangible Assets) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Oct. 31, 2018
Oct. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 4,595 $ 4,626
Accumulated Amortization (3,657) (3,550)
Net Intangible Assets 938 1,076
Customer Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets 255 257
Accumulated Amortization (148) (132)
Net Intangible Assets $ 107 $ 125
Weighted Average Amortization Period 15 years 15 years
Technology [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 692 $ 713
Accumulated Amortization (284) (239)
Net Intangible Assets $ 408 $ 474
Weighted Average Amortization Period 13 years 13 years
Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 2,973 $ 2,973
Accumulated Amortization (2,790) (2,765)
Net Intangible Assets $ 183 $ 208
Weighted Average Amortization Period 6 years 6 years
Other [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 377 $ 378
Accumulated Amortization (337) (333)
Net Intangible Assets $ 40 $ 45
Weighted Average Amortization Period 8 years 8 years
Tradenames and trademarks [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Intangible Assets $ 238 $ 245
Accumulated Amortization (98) (81)
Net Intangible Assets 140 164
Indefinite tradenames and trademarks $ 60 $ 60
Weighted Average Amortization Period 13 years 13 years