Note 8 - Deposits - Scheduled Maturities of Time Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
2020, amount	$ 66,039
2020, percentage	30.30%
2021, amount	$ 54,923
2021, percentage	25.20%
2022, amount	$ 17,110
2022, percentage	7.90%
2023, amount	$ 39,096
2023, percentage	17.90%
2024, amount	$ 34,382
2024, percentage	15.80%
Thereafter, amount	$ 6,217
Thereafter, percentage	2.90%
Total, amount	$ 217,767	$ 221,599
Total, percentage	100.00%