Note 2 - Business Acquisition - Unaudited Pro Forma Financial Information (Details) - Microlab/FXR LLC [Member] - USD ($)	3 Months Ended	6 Months Ended
Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021
Revenue	$ 22,559	$ 14,869	$ 44,527	$ 27,988
Net income	$ 429	$ 5,146	$ 739	$ 4,666
Basic (in dollars per share)	$ 0.04	$ 0.52	$ 0.07	$ 0.47
Diluted (in dollars per share)	$ 0.04	$ 0.51	$ 0.07	$ 0.46

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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-Publisher FASB
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