Note 5 - Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2019
2021, operating leases	$ 1,442
2021, finance leases	9
2022, operating leases	1,341
2022, finance leases	7
2023, operating leases	1,207
2023, finance leases	6
2024, operating leases	1,023
2024, finance leases	0
2025, operating leases	924
2025, finance leases	0
Thereafter, operating leases	5,685
Thereafter, finance leases	0
Total operating lease payments	11,622
Total financing lease payments	22
Less: operating lease interest	(1,758)
Less: financing lease interest	(2)
Total present value of operating lease liabilities	9,864	$ 1,800
Total present value of financing lease liabilities	$ 20