Note 15 - Stock Plans (Details Textual) $ / shares in Units, $ in Thousands	12 Months Ended
Oct. 31, 2016 USD ($) $ / shares shares	Oct. 31, 2015 USD ($) $ / shares shares	Oct. 31, 2014 USD ($) $ / shares shares
Allocated Share-based Compensation Expense \| $	$ 2,900	$ 8,800	$ 10,300
Allocated Share-based Compensation Expense, Net of Tax \| $	$ 2,300	6,500
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 \| $		$ 15	$ 105
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	23.91
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares	1	$ 1.47	$ 3.06
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price \| $ / shares	$ 2.55	$ 2.78	$ 2.09
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	133,125
Share-based Compensation \| $	$ 2,921	$ 8,816	$ 10,279
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	4,031,124
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	7,239,469	3,600,769
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	7,400,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized \| $	$ 7,100
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 240 days
Nonemployee Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Installments	3
Number of Directors	5
Employee Stock Option [Member]
Allocated Share-based Compensation Expense \| $	$ 500	$ 2,200	$ 3,900
Share-based Compensation Income \| $	1,500
Performance Shares [Member]
Share-based Compensation, Reverse of Previously Recognized Expense \| $	$ 2,100
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Post-vesting Holding Period	2 years
Restricted Stock Units (RSUs) [Member] \| Nonemployee Director [Member]
Number of Directors	4
Mix of 50% Stock Options and 50% Restricted Stock Units (RSU)s [Member] \| Nonemployee Director [Member]
Number of Directors	1
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Participants Years of Service	15 years
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	456,070	1,018,558	168,161
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	33,125	5,811	12,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options Vested, Number	224,326	538,892	534,143
Restricted Stock [Member] \| Prior Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	176,944	97,854	67,804
Restricted Stock [Member] \| Age Requirement Without Service [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Participants Age	60 years
Restricted Stock [Member] \| Age Requirement With Service [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, Shares Issued in Period	356,382	155,433	85,035
Awards Other Than Options [Member]
Share-based Compensation \| $	$ 4,300	$ 6,500	$ 6,200
Target 2016 LTIP Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	2,800,000
Market Stock Units [Member]
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	780,000	800,000	800,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	2,300,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	50.00%
Share-based Compensation Arrangement By Share-based Compensation Award Fair Value Measurement Period	60 days
Market Stock Units [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	0.00%
Market Stock Units [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	175.00%
Market Stock Units [Member] \| Fiscal Year 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	700,000
Market Stock Units [Member] \| Two Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	0.73%	0.74%	0.45%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	56.50%	38.28%	47.52%
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	0.81%	0.95%	0.71%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	52.77%	42.01%	58.07%
Market Stock Units [Member] \| Three Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	0.87%	1.12%	0.93%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	50.34%	45.73%	63.79%
Market Stock Units [Member] \| Four Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	1.02%	1.44%	1.32%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	52.36%	59.08%	61.12%
Market Stock Units [Member] \| Five Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	1.17%	1.75%	1.70%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	61.08%	57.77%	64.67%
Performance Based MSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Installments	4
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	1.38%	2.03%	2.60%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	0.61%	0.58%	0.70%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	7 years 131 days	7 years 80 days	7 years 153 days
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Estimated Forfeiture Rate	10.90%	8.84%	14.59%

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Represents the period for which fair value measurements are calculated.

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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 total stock-based compensation income related to stock options.

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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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 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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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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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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