Note 5 - Leases - Maturity of Lease Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Operating leases, Remaining 2021	$ 864
Finance leases, Remaining 2021	369
Total, Remaining 2021	1,233
Operating leases, 2022	1,735
Finance leases, 2022	587
Total, 2022	2,322
Operating leases, 2023	1,738
Finance leases, 2023	333
Total, 2023	2,071
Operating leases, 2024	1,408
Finance leases, 2024	280
Total, 2024	1,688
Operating leases, 2025	1,205
Finance leases, 2025	29
Total, 2025	1,234
Operating leases, Thereafter	8,283
Finance leases, Thereafter	0
Total, Thereafter	8,283
Operating leases, total lease payments	15,233
Finance leases, total lease payments	1,598
Total, total lease payments	16,831
Operating leases, less: Interest	(5,225)
Finance leases, less: Interest	(112)
Total, less: Interest	(5,337)
Operating leases, present value of lease liabilities	10,008
Finance leases, present value of lease liabilities	1,486
Total, present value of lease liabilities	$ 11,494	$ 11,389