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Note 11 - Income Taxes - Effective Tax Rate (Details)		12 Months Ended
		Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Computed “expected” tax rate		35.00%	35.00%	35.00%
State income taxes, net of federal income tax benefit		1.00%	65.40%	(15.60%)
Permanent differences, net		(2.40%)	222.20%	(0.40%)
Deferred tax asset valuation allowance impact		(667.80%)
Tax contingencies			0.30%	3.20%
Adjustments to prior years’ tax accruals(1)	[1]		(107.20%)	3.80%
Effective tax rate		(634.20%)	215.70%	26.00%
[1] The adjustments to prior years' tax accruals includes the impact of a federal specified liability loss refund of taxes paid in fiscal year 2002 of (114.8%) for the year ended October 31, 2016.

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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