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Note 2 - Securities Available for Sale - Amortized Cost and Fair Values of Securities Available for Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Securities available for sale, cost	$ 238,362	$ 232,630
Gross unrealized gains	933	460
Gross unrealized losses	(20,538)	(24,541)
Fair value	218,757	208,549
Collateralized Mortgage-Backed Securities [Member]
Securities available for sale, cost	11,969	11,285
Gross unrealized gains	2	0
Gross unrealized losses	(1,475)	(1,674)
Fair value	10,496	9,611
Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]
Securities available for sale, cost	157,483	151,200
Gross unrealized gains	490	77
Gross unrealized losses	(15,958)	(19,541)
Fair value	142,015	131,736
Mortgage-Backed Securities, Issued by Private Enterprises [Member]
Securities available for sale, cost	6,499	7,122
Gross unrealized gains	0	0
Gross unrealized losses	(580)	(722)
Fair value	5,919	6,400
Mortgage-related Securities [Member]
Securities available for sale, cost	175,951	169,607
Gross unrealized gains	492	77
Gross unrealized losses	(18,013)	(21,937)
Fair value	158,430	147,747
US Government-sponsored Enterprises Debt Securities [Member]
Securities available for sale, cost	2,500	2,500
Gross unrealized gains	0	0
Gross unrealized losses	(15)	(60)
Fair value	2,485	2,440
US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, cost	49,911	48,023
Gross unrealized gains	441	383
Gross unrealized losses	(1,310)	(1,330)
Fair value	49,042	47,076
Other Debt Obligations [Member]
Securities available for sale, cost	10,000	12,500
Gross unrealized gains	0	0
Gross unrealized losses	(1,200)	(1,214)
Fair value	8,800	11,286
Debt Securities [Member]
Securities available for sale, cost	62,411	63,023
Debt [Member]
Gross unrealized gains	441	383
Gross unrealized losses	(2,525)	(2,604)
Fair value	$ 60,327	$ 60,802

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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