Note 2 - Revenue Recognition - Non-interest Income (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022
Gain on sales of loans	[1]	$ 1,494	$ 2,393
Total non-interest income		8,281	8,887
Deposit Account [Member]
Revenue from Contract with Customer		1,099	1,095
Other Fees and Service Charges [Member]
Revenue from Contract with Customer		528	416
Debit Card [Member]
Revenue from Contract with Customer		1,725	1,711
Bank Servicing [Member]
Revenue from Contract with Customer	[1]	1,575	1,590
Uninsured Investment Product Sales [Member]
Revenue from Contract with Customer		1,505	1,396
Product and Service, Other [Member]
Revenue from Contract with Customer		$ 355	$ 286

[1] Not within the scope of ASC 606.