Note 13 - Commitments and Contingencies (Details Textual) - USD ($)	1 Months Ended	11 Months Ended	12 Months Ended
	Dec. 05, 2018	Oct. 31, 2019	Oct. 31, 2020
Operating Leases, Rent Expense, Net, Total	$ 700,000	$ 4,400,000	$ 6,600,000
Letters of Credit Outstanding, Amount			1,200,000
Standby Letters of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity			7,500,000
Bank Account to Facilitate Administration of Claims [Member]
Restricted Cash, Total		300,000	300,000
Accrued Liabilities and Other Liabilities [Member]
Self-insurance, Accrued Expenses for Claims Incurred But Not Reported and Estimated Losses Reported		5,000,000.0	5,400,000
Self-insurance, Accrued Expenses for Health Claims Incurred But Not Reoprted		1,100,000	2,400,000
Capital Leases for Land and Buildings [member]
Capital Lease Obligations, Total		$ 600,000	500,000
Minimum [Member]
Operating Leases, Monthly Rent Payment			100
Maximum [Member]
Operating Leases, Monthly Rent Payment			$ 19,564