Note 13 - Income Taxes - Tax Carryforwards (Details) $ in Millions	Oct. 31, 2022 USD ($)
Interest expense carryforwards	$ 12.4
Total tax carryforwards	180.2
Domestic Tax Authority [Member]
Operating loss carryforward	105.5
State and Local Jurisdiction [Member]
Operating loss carryforward	50.3
Tax carryforwards	0.0
Foreign Tax Authority [Member]
Operating loss carryforward	11.9
Tax carryforwards	$ 0.1