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Note 2 - Debt Securities - Available For Sale Securities in Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Securities available for sale, less than 12 months, fair value	$ 13,006	$ 12,998
Securities available for sale, less than 12 months, unrealized losses	(30)	(98)
Securities available for sale, 12 months or longer, fair value	101,900	102,781
Securities available for sale, 12 months or longer, unrealized losses	(12,756)	(14,752)
Securities available for sale, total fair value	114,906	115,779
Securities available for sale, total unrealized losses	(12,786)	(14,850)
US Treasury Securities [Member]
Securities available for sale, less than 12 months, fair value	5,427	4,984
Securities available for sale, less than 12 months, unrealized losses	(1)	(1)
Securities available for sale, 12 months or longer, fair value	0	0
Securities available for sale, 12 months or longer, unrealized losses	0	0
Securities available for sale, total fair value	5,427	4,984
Securities available for sale, total unrealized losses	(1)	(1)
US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, less than 12 months, fair value	2,345	3,914
Securities available for sale, less than 12 months, unrealized losses	(10)	(16)
Securities available for sale, 12 months or longer, fair value	5,722	6,638
Securities available for sale, 12 months or longer, unrealized losses	(70)	(98)
Securities available for sale, total fair value	8,067	10,552
Securities available for sale, total unrealized losses	(80)	(114)
Corporate Debt Securities [Member]
Securities available for sale, less than 12 months, fair value	0	0
Securities available for sale, less than 12 months, unrealized losses	0	0
Securities available for sale, 12 months or longer, fair value	27,827	27,542
Securities available for sale, 12 months or longer, unrealized losses	(779)	(1,056)
Securities available for sale, total fair value	27,827	27,542
Securities available for sale, total unrealized losses	(779)	(1,056)
Mortgage-backed Agency Securities [Member]
Securities available for sale, less than 12 months, fair value	5,234	4,100
Securities available for sale, less than 12 months, unrealized losses	(19)	(81)
Securities available for sale, 12 months or longer, fair value	68,351	68,601
Securities available for sale, 12 months or longer, unrealized losses	(11,907)	(13,598)
Securities available for sale, total fair value	73,585	72,701
Securities available for sale, total unrealized losses	$ (11,926)	$ (13,679)

X

- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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