Note 2 - Securities - Amortized Cost and Fair Value of Securities Available-for-sale and Securities Held-to-maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Available-for-sale securities, amortized cost	$ 300,666	$ 317,530
Held-to-maturity, amortized cost	6,054	6,970
Available-for-sale securities, gross unrealized gains	142	90
Available-for-sale securities, gross unrealized losses	(36,006)	(38,015)
Available-for-sale securities, fair value	264,802	279,605
Held-to-maturity, fair value	5,530	6,294
US Treasury Securities [Member]
Available-for-sale securities, amortized cost	6,471	8,941
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized losses	(219)	(533)
Available-for-sale securities, fair value	6,252	8,408
US States and Political Subdivisions Debt Securities [Member]
Available-for-sale securities, amortized cost	85,917	92,891
Held-to-maturity, amortized cost	6,054	6,970
Available-for-sale securities, gross unrealized gains	46	63
Held-to-maturity, gross unrecognized gains	0	0
Available-for-sale securities, gross unrealized losses	(8,233)	(8,982)
Held-to-maturity, gross unrecognized losses	(524)	(676)
Available-for-sale securities, fair value	77,730	83,972
Held-to-maturity, fair value	5,530	6,294
US Government-sponsored Enterprises Debt Securities [Member]
Available-for-sale securities, amortized cost	28,019	29,430
Available-for-sale securities, gross unrealized gains	4	7
Available-for-sale securities, gross unrealized losses	(3,356)	(3,745)
Available-for-sale securities, fair value	24,667	25,692
Residential Mortgage-Backed Securities [Member]
Available-for-sale securities, amortized cost	94,303	104,689
Available-for-sale securities, gross unrealized gains	0	12
Available-for-sale securities, gross unrealized losses	(14,936)	(15,066)
Available-for-sale securities, fair value	79,367	89,635
Commercial Mortgage-Backed Securities [Member]
Available-for-sale securities, amortized cost	8,584	8,604
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized losses	(1,752)	(1,809)
Available-for-sale securities, fair value	6,832	6,795
Collateralized Mortgage Obligations [Member]
Available-for-sale securities, amortized cost	60,333	55,800
Available-for-sale securities, gross unrealized gains	92	8
Available-for-sale securities, gross unrealized losses	(5,757)	(5,738)
Available-for-sale securities, fair value	54,668	50,070
Other Debt Obligations [Member]
Available-for-sale securities, amortized cost	17,039	17,175
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized losses	(1,753)	(2,142)
Available-for-sale securities, fair value	$ 15,286	$ 15,033

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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