Note 2 - Securities - Amortized Cost and Fair Value of Securities Available-for-sale and Securities Held-to-maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Jun. 30, 2023
Available-for-sale securities, amortized cost	$ 301,459	$ 317,530
Available-for-sale securities, gross unrealized gains	203	90
Available-for-sale securities, gross unrealized losses	(36,016)	(38,015)
Available-for-sale securities, fair value	265,646	279,605
Held-to-maturity, amortized cost	6,428	6,970
Held-to-maturity, fair value	5,841	6,294
US Treasury Securities [Member]
Available-for-sale securities, amortized cost	6,465	8,941
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized losses	(273)	(533)
Available-for-sale securities, fair value	6,192	8,408
US States and Political Subdivisions Debt Securities [Member]
Available-for-sale securities, amortized cost	86,510	92,891
Available-for-sale securities, gross unrealized gains	88	63
Available-for-sale securities, gross unrealized losses	(7,651)	(8,982)
Available-for-sale securities, fair value	78,947	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	(587)	(676)
Held-to-maturity, fair value	5,841	6,294
US Government-sponsored Enterprises Debt Securities [Member]
Available-for-sale securities, amortized cost	28,327	29,430
Available-for-sale securities, gross unrealized gains	7	7
Available-for-sale securities, gross unrealized losses	(3,450)	(3,745)
Available-for-sale securities, fair value	24,884	25,692
Residential Mortgage-Backed Securities [Member]
Available-for-sale securities, amortized cost	96,885	104,689
Available-for-sale securities, gross unrealized gains	0	12
Available-for-sale securities, gross unrealized losses	(14,736)	(15,066)
Available-for-sale securities, fair value	82,149	89,635
Commercial Mortgage-Backed Securities [Member]
Available-for-sale securities, amortized cost	8,589	8,604
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized losses	(1,743)	(1,809)
Available-for-sale securities, fair value	6,846	6,795
Collateralized Mortgage Obligations [Member]
Available-for-sale securities, amortized cost	57,621	55,800
Available-for-sale securities, gross unrealized gains	108	8
Available-for-sale securities, gross unrealized losses	(5,692)	(5,738)
Available-for-sale securities, fair value	52,037	50,070
Other Debt Obligations [Member]
Available-for-sale securities, amortized cost	17,062	17,175
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized losses	(2,471)	(2,142)
Available-for-sale securities, fair value	$ 14,591	$ 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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