Note 16 - Income Taxes - Deferred Taxes (Details) - USD ($)	Jan. 31, 2023	Oct. 31, 2022	Jan. 31, 2022
Net operating losses	$ 23,019,000		$ 20,282,000
Tax credit carry forwards	184,000		165,000
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	857,000		833,000
Allowance for doubtful accounts	145,000		102,000
Inventory	1,383,000		835,000
Accruals not yet deductible for tax purposes	83,000		130,000
Fixed assets	265,000		289,000
Intangible assets	411,000		391,000
Other	585,000		623,000
Gross deferred tax assets	26,932,000		23,650,000
Valuation allowance	(26,932,000)		(23,650,000)
Deferred tax assets	0		0
Other	29,000		92,000
Deferred tax liabilities	(29,000)		(92,000)
Unrecognized tax benefits	0	$ 0	0
Total deferred tax liabilities, net	$ (29,000)		$ (92,000)