Note 15 - Stock Plans (Details Textual) $ / shares in Units, $ in Thousands	12 Months Ended
Oct. 31, 2018 USD ($) $ / shares shares	Oct. 31, 2017 USD ($) $ / shares shares	Oct. 31, 2016 USD ($) $ / shares shares
Allocated Share-based Compensation Expense, Total \| $	$ 3,700	$ 600	$ 2,900
Allocated Share-based Compensation Expense, Net of Tax \| $	$ 2,000		2,300
Share-based Compensation Arrangement by Share-based Payment Award, Number of Installments	4
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value \| $	$ 26	$ 12
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value \| $			$ 0
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit \| $ / shares	$ 1.54
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit \| $ / shares	6.28
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares	1.08	$ 1.33	$ 1
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price \| $ / shares	$ 2.78	$ 2.60	$ 2.55
Share-based Compensation Arrangement by Share-based Payment Award, Participants Years of Service	15 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	2,423,148
Share-based Compensation, Total \| $	$ 3,669	$ 557	$ 2,921
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	2,129,073
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	5,175,258	6,174,477
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	5,000,000
Stock Issued During Period, Shares, Share-based Compensation, Forfeited	2,100,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total \| $	$ 5,100
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 182 days
Nonemployee Director [Member]
Number of Directors	5
Employee Stock Option [Member]
Allocated Share-based Compensation Expense, Total \| $	$ 700	$ 500	500
Share-based Compensation Income \| $			$ 1,500
Performance Shares, Including LTIP [Member]
Share-based Compensation, Reverse of Previously Recognized Expense \| $		2,000
Restricted Stock [Member]
Allocated Share-based Compensation Expense, Total \| $		$ 2,100
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	507,278	366,513	456,070
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period		452,500	33,125
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options Vested, Number	540,229	312,419	224,326
Restricted Stock [Member] \| Prior Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	148,424	101,218	176,944
Restricted Stock [Member] \| Participants With Service Requirement [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Participants Age	58 years
Restricted Stock [Member] \| Nonemployee Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Installments	3
Share-based Compensation Arrangement by Share-based Payment Award, Post-vesting Holding Period	2 years
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	397,590	298,388	356,382
Restricted Stock [Member] \| Participants Without Service Requirement [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Participants Age	60 years
Performance Shares [Member]
Share-based Compensation, Reverse of Previously Recognized Expense \| $			$ 2,100
Awards Other Than Options [Member]
Share-based Compensation, Total \| $	$ 2,800	$ 21	$ 4,300
Target 2016 LTIP Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	2,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Previous Period, Net of Forfeited in Current Period	300,000
Target 2018 LTIP Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	800,000
Market Stock Units [Member]
Share-based Compensation, Reverse of Previously Recognized Expense \| $	$ 800
Share-based Compensation Arrangement by Share-based Payment Award, Number of Installments	4
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	850,000	850,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	3,000,000
Share-based Compensation Arrangement By Share-based Compensation Award Fair Value Measurement Period	60 days
Market Stock Units [Member] \| Two Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate		1.35%	0.73%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	48.41%	57.93%	56.50%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Market Stock Units [Member] \| Two and a Half Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	2.56%	1.43%	0.81%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	51.92%	54.61%	52.77%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Market Stock Units [Member] \| Three Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate		1.49%	0.87%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	56.11%	52.66%	50.34%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Market Stock Units [Member] \| Four Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	2.68%	1.63%	1.02%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	52.59%	48.85%	52.36%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Market Stock Units [Member] \| Five Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate		1.76%	1.17%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	49.57%	50.78%	61.08%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Market Stock Units [Member] \| Share-based Compensation Award, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	50.00%
Market Stock Units [Member] \| Minimum [Member]
Percentage of Target Number of Shares Covered by MSU Awards	0.00%
Market Stock Units [Member] \| Maximum [Member]
Percentage of Target Number of Shares Covered by MSU Awards	200.00%
Market Stock Units [Member] \| Fiscal Year 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	58,733
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	675,000
Market Stock Units [Member] \| Fiscal Year 2015 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	96,925
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	400,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Adjustment for Shares Grants in Previous Period	104,377
Market Stock Units [Member] \| Fiscal Year 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	200,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Adjustment for Shares Grants in Previous Period	200,000
Performance Based MSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Installments	4
Performance Based MSUs [Member] \| Share-based Compensation Award, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	50.00%
Equity Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	2.80%	2.05%	1.38%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	0.50%	0.53%	0.61%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	8 years	7 years 233 days	7 years 131 days
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Estimated Forfeiture Rate	9.90%	9.92%	10.90%

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The adjustment in the current year to shares granted in a prior year.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were granted during the previous period, net of the shares forfeited during the reporting period.

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The number of vested, restricted stock shares which were deferred at the associates' election at the end of the period.

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Age that a participant must reach, in some cases along with a minimum service requirement, to vest in restricted stock awards after one year.

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Number of years of service that a participant must attain, along with a minimum age requirement, to vest in restricted stock awards after one year.

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Represents the post-vesting holding period for share-based payment awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Represents total stock-based compensation income related to stock options.

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Represents the total stock-based compensation of income that was a reverse of previously recognized expense.

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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 amount of expense, net of income tax, 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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Unrecognized cost of unvested share-based compensation awards.

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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.

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

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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 estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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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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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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of share instruments newly issued under a share-based compensation plan.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Percentage of vesting of share-based compensation awards.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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