Note 8 - Income Tax Provision - Adjustments to Uncertain Tax Positions (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2022	Oct. 31, 2021
Balance, at beginning of year	$ 141	$ 107
Increase for tax positions related to the current year	50	44
Increase for tax positions related to prior years	(29)	(1)
Increase for interest and penalties	0	2
Statute of Limitations Expirations	(28)	(11)
Balance, at end of year	$ 134	$ 141