Note 10 - Leases (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating Lease, Right-of-Use Asset	$ 99,125		$ 0
Operating Lease, Liability, Total	$ 92,711		$ 0
Operating Lease, Weighted Average Remaining Lease Term	21 years 1 month 6 days
Operating Lease, Weighted Average Discount Rate, Percent	6.65%
Minimum [Member]
Lessee, Operating Lease, Remaining Term of Contract	1 year
Maximum [Member]
Lessee, Operating Lease, Remaining Term of Contract	52 years
Lessee, Operating Lease, Renewal Term	75 years
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset		$ 106,000
Operating Lease, Liability, Total		$ 98,700