Note 7 - Borrowed Funds - Short Term FHLB Advances (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Variable Rate Advances [Member]
Maximum balance at any month end	$ 0
Average balance	1,192
Period end balance	$ 0
At end of period	0.00%
During the period	5.78%
Fixed Rate Advances [Member]
Maximum balance at any month end	$ 13,000
Average balance	2,220
Period end balance	$ 0
At end of period	0.00%
During the period	5.63%
Bank Term Funding Program [Member]
Maximum balance at any month end	$ 33,625
Average balance	31,908
Period end balance	$ 33,625
At end of period	4.85%
During the period	4.81%