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Note 8 - Income Tax Provision (Benefit) - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022
Income taxes at federal statutory rate	$ (893)	$ 333
Income taxes at federal statutory rate, percent	21.00%	21.00%
State tax provision, net of federal tax benefit	$ (212)	$ 60
State tax provision, net of federal tax benefit, percent	5.00%	3.80%
Stock options	$ 88	$ 19
Stock options, percent	(2.10%)	1.20%
Permanent differences	$ 15	$ 5
Permanent differences, percent	(0.40%)	0.30%
R&D credits	$ (238)	$ (219)
R&D credits, percent	5.60%	(13.60%)
Foreign derived intangible income	$ 0	$ (68)
Foreign derived intangible income, percent	0.00%	(4.30%)
ASC 740-10 Liability	$ 13	$ (7)
ASC 740-10 Liability, percent	(0.30%)	(0.40%)
Section 481(a) adjustment	$ 0	$ 142
Section 481(a) adjustment, percent	0.00%	8.90%
Return-to-provision adjustments	$ (69)	$ (126)
Return-to-provision adjustments, percent	1.60%	(7.90%)
Other	$ 124	$ 0
Other, percent	(2.90%)	0.00%
Income Tax Expense (Benefit)	$ (1,172)	$ 139
Effective Income Tax Rate Reconciliation, Percent	27.50%	9.20%

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to ASC 740-10 liability Expense.

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