Note 3 - Securities - Amortized Cost and Fair Value of Securities Available-for-sale and Securities Held-to-maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022
Available-for-sale securities, amortized cost	$ 321,341	$ 324,329
Available-for-sale securities, gross unrealized gains	265	143
Available-for-sale securities, gross unrealized losses	(34,271)	(28,125)
Available-for-sale securities, fair value	287,335	296,347
Held-to-maturity, amortized cost	7,338	7,874
Held-to-maturity, fair value	6,939	7,831
US Treasury Securities [Member]
Available-for-sale securities, amortized cost	8,933	8,909
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized losses	(499)	(462)
Available-for-sale securities, fair value	8,434	8,447
US States and Political Subdivisions Debt Securities [Member]
Available-for-sale securities, amortized cost	99,955	105,977
Available-for-sale securities, gross unrealized gains	185	129
Available-for-sale securities, gross unrealized losses	(8,082)	(8,749)
Available-for-sale securities, fair value	92,058	97,357
Held-to-maturity, amortized cost	7,338	7,874
Held-to-maturity, gross unrecognized gains	0	47
Held-to-maturity, gross unrecognized losses	(399)	(90)
Held-to-maturity, fair value	6,939	7,831
US Government-sponsored Enterprises Debt Securities [Member]
Available-for-sale securities, amortized cost	30,600	28,689
Available-for-sale securities, gross unrealized gains	8	0
Available-for-sale securities, gross unrealized losses	(3,362)	(2,424)
Available-for-sale securities, fair value	27,246	26,265
Residential Mortgage-Backed Securities [Member]
Available-for-sale securities, amortized cost	106,444	113,812
Available-for-sale securities, gross unrealized gains	21	13
Available-for-sale securities, gross unrealized losses	(14,244)	(11,642)
Available-for-sale securities, fair value	92,221	102,183
Commercial Mortgage-Backed Securities [Member]
Available-for-sale securities, amortized cost	8,608	8,623
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized losses	(1,652)	(1,322)
Available-for-sale securities, fair value	6,956	7,301
Collateralized Mortgage Obligations [Member]
Available-for-sale securities, amortized cost	49,577	40,952
Available-for-sale securities, gross unrealized gains	51	1
Available-for-sale securities, gross unrealized losses	(4,780)	(2,774)
Available-for-sale securities, fair value	44,848	38,179
Other Debt Obligations [Member]
Available-for-sale securities, amortized cost	17,224	17,367
Available-for-sale securities, gross unrealized gains	0	0
Available-for-sale securities, gross unrealized losses	(1,652)	(752)
Available-for-sale securities, fair value	$ 15,572	$ 16,615

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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