Note 2 - Securities - Amortized Cost and Fair Value of Securities Available-for-sale and Securities Held-to-maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jun. 30, 2023
Available-for-sale securities, amortized cost	$ 308,175	$ 317,530
Available-for-sale securities, gross unrealized gains	414	90
Available-for-sale securities, gross unrealized losses	(32,456)	(38,015)
Available-for-sale securities, fair value	276,133	279,605
Held-to-maturity, amortized cost	6,428	6,970
Held-to-maturity, fair value	5,900	6,294
US Treasury Securities [Member]
Available-for-sale securities, amortized cost	8,957	8,941
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized losses	(321)	(533)
Available-for-sale securities, fair value	8,636	8,408
US States and Political Subdivisions Debt Securities [Member]
Available-for-sale securities, amortized cost	87,136	92,891
Available-for-sale securities, gross unrealized gains	150	63
Available-for-sale securities, gross unrealized losses	(6,821)	(8,982)
Available-for-sale securities, fair value	80,465	83,972
Held-to-maturity, amortized cost	6,428	6,970
Held-to-maturity, gross unrecognized gains	0	0
Held-to-maturity, gross unrecognized losses	(528)	(676)
Held-to-maturity, fair value	5,900	6,294
US Government-sponsored Enterprises Debt Securities [Member]
Available-for-sale securities, amortized cost	28,686	29,430
Available-for-sale securities, gross unrealized gains	45	7
Available-for-sale securities, gross unrealized losses	(3,273)	(3,745)
Available-for-sale securities, fair value	25,458	25,692
Residential Mortgage-Backed Securities [Member]
Available-for-sale securities, amortized cost	100,308	104,689
Available-for-sale securities, gross unrealized gains	57	12
Available-for-sale securities, gross unrealized losses	(13,452)	(15,066)
Available-for-sale securities, fair value	86,913	89,635
Commercial Mortgage-Backed Securities [Member]
Available-for-sale securities, amortized cost	8,594	8,604
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized losses	(1,678)	(1,809)
Available-for-sale securities, fair value	6,916	6,795
Collateralized Mortgage Obligations [Member]
Available-for-sale securities, amortized cost	57,406	55,800
Available-for-sale securities, gross unrealized gains	162	8
Available-for-sale securities, gross unrealized losses	(5,338)	(5,738)
Available-for-sale securities, fair value	52,230	50,070
Other Debt Obligations [Member]
Available-for-sale securities, amortized cost	17,088	17,175
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized losses	(1,573)	(2,142)
Available-for-sale securities, fair value	$ 15,515	$ 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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