Note 5 - Goodwill and Other Intangibles - Changes in Goodwill and Other Intangibles (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025		Sep. 30, 2024
Balance	$ 6,978		$ 6,978
Balance	7,026	[1]	7,034
Amortization	(6)		(6)
Amortization	(6)		(6)
Balance	6,978		6,978
Balance	7,020		7,028
Core Deposits [Member]
Balance, other intangible	48		56
Amortization, other intangible	(6)		(6)
Balance, other intangible	$ 42		$ 50

[1] Derived from audited consolidated financial statements