Note 5 - Leases - Maturity of Lease Liabilities (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Operating leases, 2020	$ 858
Finance leases, 2020	649
Total, 2020	1,507
Operating leases, 2021	722
Finance leases, 2021	649
Total, 2021	1,371
Operating leases, 2022	726
Finance leases, 2022	485
Total, 2022	1,211
Operating leases, 2023	738
Finance leases, 2023	244
Total, 2023	982
Operating leases, 2024	798
Finance leases, 2024	188
Total, 2024	986
Operating leases, thereafter	2,582
Finance leases, thereafter	0
Total, thereafter	2,582
Operating leases, total lease payments	6,424
Finance leases, total lease payments	2,215
Total, total lease payments	8,639
Operating leases, less: Interest	(1,200)
Finance leases, less: Interest	(207)
Total, less: Interest	(1,407)
Operating leases, present value of lease liabilities	5,224
Finance leases, present value of lease liabilities	2,008
Total, present value of lease liabilities	$ 7,232