Note 6 - Leases - Maturity of Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating leases, 2021	$ 1,388
Finance leases, 2021	738
Total, 2021	2,126
Operating leases, 2022	1,403
Finance leases, 2022	587
Total, 2022	1,990
Operating leases, 2023	1,406
Finance leases, 2023	333
Total, 2023	1,739
Operating leases, 2024	1,374
Finance leases, 2024	280
Total, 2024	1,654
Operating leases, 2025	1,205
Finance leases, 2025	29
Total, 2025	1,234
Operating leases, Thereafter	8,282
Finance leases, Thereafter
Total, Thereafter	8,282
Operating leases, total lease payments	15,058
Finance leases, total lease payments	1,967
Total, total lease payments	17,025
Operating leases, less: Interest	(5,481)
Finance leases, less: Interest	(155)
Total, less: Interest	(5,636)
Operating leases, present value of lease liabilities	9,577
Finance leases, present value of lease liabilities	1,812
Total, present value of lease liabilities	$ 11,389	$ 7,232