Note 10 - Leases - Other Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating cash flows from finance leases	$ 200	$ 203
Operating cash flows from operating leases	12,800	5,645
Financing cash flows from finance leases	38	28
Operating lease right-of-use assets obtained in exchange for operating lease liabilities	$ 10,210	$ 592
Finance leases, Weighted-average remaining lease term (Year)	13 years	14 years
Operating leases, Weighted-average remaining lease term (Year)	28 years	30 years
Finance leases, Weighted-average discount rate	9.80%	9.80%
Operating leases, Weighted-average discount rate	6.90%	6.90%