Note 14 - Leases - Schedule of Future Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
2021, finance leases	$ 22,557
2021, operating leases	23,358
2022, finance leases	18,074
2022, operating leases	13,450
2023, finance leases	16,623
2023, operating leases	6,395
2024, finance leases	3,595
2024, operating leases	6,115
2025, finance leases	320
2025, operating leases	4,619
Thereafter, finance leases	0
Thereafter, operating leases	11,339
Total minimum lease payments, finance leases	61,169
Total minimum lease payments, operating leases	65,276
Less amount representing interest, finance leases	4,851
Less amount representing interest, operating leases	9,380
Present value of minimum lease payments, finance leases	56,318
Present value of minimum lease payments, operating leases	$ 55,896	$ 74,892