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10. Concentration Risk Disclosure (Details) - USD ($)
12 Months Ended
Oct. 31, 2019
Oct. 31, 2018
Foreign Sales $ 1,226,000 $ 978,000
Total Revenue | Customer A    
Customer Concentrations, Percentage 24.00% 23.00%
Customer Concentrations $ 3,599,000 $ 3,344,000
Total Revenue | Customer B    
Customer Concentrations, Percentage 20.00% 20.00%
Customer Concentrations $ 2,985,000 $ 2,995,000
Total Revenue | Customer C    
Customer Concentrations, Percentage 11.00% 10.00%
Customer Concentrations $ 1,713,000 $ 1,459,000
Total Accounts Receivable | Customer A    
Customer Concentrations, Percentage 19.00% 33.00%
Customer Concentrations $ 224,000 $ 446,000
Total Accounts Receivable | Customer B    
Customer Concentrations, Percentage 14.00% 21.00%
Customer Concentrations $ 173,000 $ 278,000
Total Accounts Receivable | Customer C    
Customer Concentrations, Percentage 13.00%  
Customer Concentrations $ 158,000