Note 9 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2020	Nov. 01, 2019
Operating lease cost	$ 2,591
Cash payments on lease liabilities	$ 2,316
Weighted-average remaining lease term (in years) (Year)	3 years 255 days
Weighted-average discount rate (incremental borrowing rate)	9.60%
Prepaid Expenses and Other Current Assets [Member]
ROU assets	$ 22,267	$ 23,300
Accounts Payable and Accrued Liabilities [Member]
Lease liabilities	$ 23,306	$ 24,400