Note 2 - Business Acquisition - Allocation of Estimated Purchase Price (Details) - USD ($)	Mar. 01, 2022	Apr. 30, 2022	Oct. 31, 2021
Goodwill		$ 7,457,000	$ 2,467,000
Microlab/FXR LLC [Member]
Current assets	$ 6,924,000
Property and equipment	198,000
Intangible assets	13,840,000
Goodwill	4,990,000
Non-interest bearing liabilities	(1,702,000)
Net assets acquired at fair value	$ 24,250,000

Amount of noninterest bearing liabilities assumed at the acquisition date.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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