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Note 3 - Debt Securities - Securities Available-for-sale (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Securities available for sale, amortized cost	$ 145,622	$ 295,045
Securities available for sale, unrealized gains	2	29
Securities available for sale, unrealized losses	(15,938)	(14,113)
Securities available for sale, fair value	129,686	280,961	[1]
US Treasury Securities [Member]
Securities available for sale, amortized cost	10,784	146,653
Securities available for sale, unrealized gains	0	16
Securities available for sale, unrealized losses	(13)	(843)
Securities available for sale, fair value	10,771	145,826
US Government Agencies Debt Securities [Member]
Securities available for sale, amortized cost		5,750
Securities available for sale, unrealized gains		0
Securities available for sale, unrealized losses		(1)
Securities available for sale, fair value		5,749
US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, amortized cost	15,951	19,528
Securities available for sale, unrealized gains	2	11
Securities available for sale, unrealized losses	(263)	(162)
Securities available for sale, fair value	15,690	19,377
Corporate Debt Securities [Member]
Securities available for sale, amortized cost	28,583	28,566
Securities available for sale, unrealized gains	0	0
Securities available for sale, unrealized losses	(1,601)	(1,485)
Securities available for sale, fair value	26,982	27,081
Mortgage-backed Agency Securities [Member]
Securities available for sale, amortized cost	90,304	94,548
Securities available for sale, unrealized gains	0	2
Securities available for sale, unrealized losses	(14,061)	(11,622)
Securities available for sale, fair value	$ 76,243	$ 82,928
[1] Derived from audited financial statements

X

- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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