Note 13 - Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating lease cost	$ 6,022	$ 6,920	$ 19,310	$ 21,290
Amortization of right-of-use assets	207	166	546	834
Interest on lease liabilities	13	18	45	92
Total finance lease cost	$ 220	$ 184	591	926
Operating cash flows from operating leases			19,085	21,040
Operating cash flow from finance leases			45	92
Financing cash flows from finance leases			387	926
Operating leases			4,990	17,393
Finance leases			$ 0	$ 0