Income Taxes Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Apr. 30, 2019	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018
Income Tax Disclosure [Abstract]
Income tax (benefit) expense	$ 1,448	$ 218	$ (1,639)	$ (2,840)
Income before income taxes	$ 2,560	$ 4,243	$ (5,225)	$ 6,043
Effective tax rate	56.60%	5.10%	31.40%	(47.00%)
U.S. \| Internal Revenue Service
Income Tax Examination [Line Items]
Tax contingency			$ 8,500

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

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Estimated amount of loss resulting from an adverse tax position.

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