Note 5 - Accrued Expenses and Other Long-term Liabilities - Accrued Expenses (Details) - USD ($)	Apr. 30, 2020	Oct. 31, 2019
Wages payable	$ 1,069,000	$ 1,591,000
Accrued receipts	1,562,000	1,683,000
Warranty liability	210,000
Deferred revenue	258,000
Other accrued expenses	206,000	379,000
Totals	$ 3,305,000	$ 3,653,000