Note 3 - Loans and Allowance for Credit Losses - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024	Jun. 30, 2024
Balance	$ 7,844	$ 7,987	$ 7,930	$ 7,724	$ 7,724
Provision for expected credit losses	495	15	657	380
Charge-offs	(353)	(138)	(699)	(381)
Recoveries	61	47	159	136
Balance	8,047	7,911	8,047	7,911	7,930
Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance				52	52
Commercial & Industrial [Member]
Balance	1,076	955	1,144	1,308	1,308
Provision for expected credit losses	359	122	354	224
Charge-offs	(186)	0	(250)	0
Recoveries	0	0	1	0
Balance	1,249	1,077	1,249	1,077	1,144
Commercial & Industrial [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance				(455)	(455)
Commercial Real Estate Portfolio Segment [Member]
Balance	3,478	4,131	3,650	3,943	3,943
Provision for expected credit losses	(170)	(381)	(342)	(140)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance	3,308	3,750	3,308	3,750	3,650
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance				(53)	(53)
Farmland [Member]
Balance	93	89	89	0	0
Provision for expected credit losses	12	1	16	(3)
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Balance	105	90	105	90	89
Farmland [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance				93	93
Land Development [Member]
Balance	178	246	174	0	0
Provision for expected credit losses	20	(78)	24	(230)
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
Balance	198	168	198	168	174
Land Development [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance				398	398
Residential Portfolio Segment [Member]
Balance	2,086	1,696	2,018	1,571	1,571
Provision for expected credit losses	(92)	276	(26)	233
Charge-offs	0	0	0	0	0
Recoveries	0	1	2	3
Balance	1,994	1,973	1,994	1,973	2,018
Residential Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance				166	166
Consumer Portfolio Segment [Member]
Balance	933	870	855	902	902
Provision for expected credit losses	366	75	631	296
Charge-offs	(167)	(138)	(449)	(381)	(560)
Recoveries	61	46	156	133
Balance	$ 1,193	$ 853	$ 1,193	853	855
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance				$ (97)	$ (97)