Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event.

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Net number of non-option equity instruments granted to participants.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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Percentage of vesting of share-based compensation awards.

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Stock-Based Compensation - Performance Restricted Stock Units (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended
	Dec. 05, 2019	Dec. 05, 2018	Dec. 07, 2017	Jan. 31, 2020	Jan. 31, 2019
Key Employee Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in usd per share)				$ 17.01
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				26,390
Performance Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance Restricted Stock Units Granted	35,000	89,200	78,200
Granted (in usd per share)	$ 19.40	$ 13.63	$ 17.76
Performance restricted stock units shares forfeited	0	25,500	24,854
Allocated Share-based Compensation Expense				$ 0.1	$ 0.2
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number				28,449
Performance Restricted Stock Units [Member] \| Level 1 [Member] \| A-TSR greater than or equal to 50% [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance restricted stock units vesting percentage maximum				150.00%
Performance Restricted Stock Units [Member] \| Level 2 [Member] \| A-TSR less than 50% and greater than or equal to 20% [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance restricted stock units vesting percentage maximum				100.00%
Performance Restricted Stock Units [Member] \| Level 3 [Member] \| A-TSR less than 20% and greater than or equal to -20% [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance restricted stock units vesting percentage maximum				50.00%
Performance Restricted Stock Units [Member] \| Level 4 [Member] \| A-TSR less than -20% [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance restricted stock units vesting percentage maximum				0.00%
Performance Restricted Stock Units [Member] \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance restricted stock units vesting percentage maximum				0.00%
Performance Restricted Stock Units [Member] \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance restricted stock units vesting percentage maximum				150.00%