10. Major Customers (Details) - USD ($)	12 Months Ended
Oct. 31, 2021	Oct. 31, 2020
Foreign Sales	$ 1,063,000	$ 1,445,000
Total Revenue \| Customer A
Customer Concentrations, Percentage	8.00%	13.00%
Customer Concentrations	$ 478,000	$ 1,538,000
Total Revenue \| Customer B
Customer Concentrations, Percentage	7.00%	12.00%
Customer Concentrations	$ 435,000	$ 1,440,000
Total Revenue \| Customer C
Customer Concentrations, Percentage	6.00%	10.00%
Customer Concentrations	$ 389,000	$ 1,198,000
Total Accounts Receivable
Concentration Risk, Customer	the Company had two customers each of which accounted for 10% or more of the accounts receivable balance. One customer accounted for 18%, or $164,000, and another customer accounted for 17%, or $151,000, of the accounts receivable balance as of October 31, 2021	the Company had four customers each of which accounted for 10% or more of the accounts receivable balance. One customer accounted for 38%, or $597,000, and three customers accounted for 10% each, with balances ranging from $151,000 to $159,000, as of October 31, 2020

$ 478,000

$ 1,538,000

7.00%

12.00%

$ 389,000

$ 1,198,000

the Company had two customers each of which accounted for 10% or more of the accounts receivable balance. One customer accounted for 18%, or $164,000, and another customer accounted for 17%, or $151,000, of the accounts receivable balance as of October 31, 2021

the Company had four customers each of which accounted for 10% or more of the accounts receivable balance. One customer accounted for 38%, or $597,000, and three customers accounted for 10% each, with balances ranging from $151,000 to $159,000, as of October 31, 2020