Earnings per share - Computation of Basic and Diluted Weighted Average Shares Outstanding (Detail) - shares	3 Months Ended
Jan. 31, 2020	Jan. 31, 2019
Intangible assets
Weighted average shares outstanding for basic earnings per share	9,564,533	9,309,454
Add effects of potentially dilutive securities-assumed exercise of stock options	308,803	528,700
Weighted average shares outstanding for diluted earnings per share (C)	9,873,336	9,838,154

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- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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