Note 9 - Leases - Minimum Rental Payments (Details) $ in Thousands	Dec. 31, 2018 USD ($)
2019, capital leases	$ 2,166
2019, operating leases	8,914
2020, capital leases	2,477
2020, operating leases	7,575
2021, capital leases	2,053
2021, operating leases	6,379
2022, capital leases	1,995
2022, operating leases	4,955
2023, capital leases	1,889
2023, operating leases	4,482
After 2023, capital leases	18,108
After 2023, operating leases	18,614
Total minimum lease payments	28,688
Total minimum lease payments, operating leases	50,919
Interest component	(8,517)
Present value of minimum lease payments	$ 20,171