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Income tax provision - (Components Of Income Tax Expense Benefit) (Detail) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Income tax provision
Continuing operations	$ 1,036,000	$ 1,468,000
Discontinued operations	0	(41,000)
Net income	$ 1,036,000	$ 1,427,000

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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