Share based compensation arrangement by share based payment award number of non employee directors.

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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) per non-employee.

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No definition available.

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- Definition

Share based compensation arrangements by share based payment award grant date market price of common stock.

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- Definition

Share based compensation arrangements by share based payment award term of vested options.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Section 45
-Paragraph 28
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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

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).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

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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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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.

+ References

No definition available.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

+ References

No definition available.

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- Definition

The number of shares or units of entity securities issued in the transaction in which equity securities were issued to pay for goods or nonemployee services.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

Percentage of vesting of share-based compensation awards.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Number of shares (or other type of equity) forfeited during the period.

+ References

No definition available.

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Stock-Based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands									1 Months Ended		3 Months Ended		12 Months Ended
	Jan. 25, 2018 $ / shares shares	Jan. 02, 2018 director $ / shares shares	Dec. 18, 2017 $ / shares shares	Jan. 06, 2017 $ / shares shares	Jan. 04, 2017 director $ / shares shares	Dec. 19, 2016 $ / shares shares	Jan. 08, 2016 $ / shares shares	Jan. 04, 2016 director $ / shares shares	Jan. 31, 2018 shares	Jan. 31, 2017 USD ($) $ / shares shares	Jan. 31, 2018 USD ($)	Jan. 31, 2017 USD ($)	Oct. 31, 2018 USD ($) $ / shares shares	Oct. 31, 2017 USD ($)	Oct. 31, 2016 USD ($)	Apr. 30, 2011 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized stock-based compensation expense													$ 4,600	$ 4,300	$ 2,100
Stock compensation expense													$ 4,633	4,320	2,134
Non-employee directors for January 2018 grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of non-employee directors \| director		12
Chief Operating Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Market price of common stock at grant date \| $ / shares				$ 58.05
Stock compensation expense												$ 700
Unvested portion of restricted stock forfeited \| shares				12,800
Granted \| shares				12,800
Vice President [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares granted \| shares									867
Vested, Number of Shares \| shares										13,040
Stock compensation expense											$ 100	500
Board of Director Members for January Two Thousand Seventeen Option Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period										5 years
Term of vested stock options										5 years
Restricted shares granted \| shares	10,788
Market price of common stock at grant date \| $ / shares	$ 87.10									$ 56.65
Stock compensation expense											$ 900
Estimated fair market value of options										$ 200
Stock options total compensation cost, not yet recognized										$ 100		$ 100
Remaining service period for recognition of unrecognized compensation cost													60 months
Granted \| shares										10,000
Exercised, Weighted-Average Exercise Price \| $ / shares										$ 56.65
Restricted Stock [Member] \| Non-employee directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense														200	800
Restricted Stock [Member] \| Non-employee directors for January 2017 grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized stock-based compensation expense													$ 200	1,100
Restricted Stock [Member] \| Non-employee directors for January 2018 grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized stock-based compensation expense													1,500
Restricted Stock [Member] \| Executive officers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense													200	300	$ 300
Restricted Stock [Member] \| Executive officers for December 2016 stock grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense													900	900
Restricted Stock [Member] \| Executive officers for December 2017 stock grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized stock-based compensation expense													600
2005 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of options exercised													200
Estimated fair market value of options													$ 400	500
Exercised, Weighted-Average Exercise Price \| $ / shares													$ 17.66
2005 Stock Incentive Plan [Member] \| Stock Options [Member] \| Board of Director Members for April Two Thousand Eleven Option Grants \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period													1 year
Term of vested stock options													2 years
2005 Stock Incentive Plan [Member] \| Stock Options [Member] \| Board of Director Members for October Two Thousand Eleven Option Grants [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period													5 years
Term of vested stock options													5 years
2011 Management Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares authorized under ESPP \| shares																1,500,000
Number of non-employee directors \| director					12			12
Restricted stock closing price awarded \| $ / shares							$ 48.68
Estimated fair market value of options													$ 800	400
2011 Management Incentive Plan [Member] \| Non-employee directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock closing price awarded \| $ / shares		$ 85.90						$ 48.46
Stock price \| $ / shares					$ 62.65
2011 Management Incentive Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares granted per non-employee \| shares		1,750			1,750			1,750
Total restricted shares issued to non-employee directors \| shares								21,000
Restricted shares granted \| shares		21,000			21,000
Vested, Number of Shares \| shares													58,000
Stock compensation expense													$ 4,600	$ 4,300
Granted \| shares													47,000
2011 Management Incentive Plan [Member] \| Restricted Stock [Member] \| Executive officers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock closing price awarded \| $ / shares			$ 75.45
Restricted shares granted \| shares			25,241			70,327	24,582
Annual incremental vesting percentage			0.33%
Stock price \| $ / shares						$ 56.20