Note 3 - Loans and Allowance for Credit Losses - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Balance	$ 7,724	$ 7,724	$ 7,160
Nonaccrual, No Allowance		502
Individually evaluated for impairment			0
Nonaccrual		774	54
Nonaccrual, Interest Income		82
Provision for expected credit losses		556	855
Charge-offs		(566)	(447)
Recoveries		164	156
Total ending allowance balance		7,930	7,724
Balance		7,930	7,724
Loans individually evaluated for impairment			405
Total ending loans balance		759,114	711,960
Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	52	52
Total ending allowance balance			52
Balance			52
Financial Asset Acquired [Member]
Acquired loans collectively evaluated for impairment			114
Acquired loans collectively evaluated for impairment			31,843
Financial Asset Originated [Member]
Acquired loans collectively evaluated for impairment			7,610
Acquired loans collectively evaluated for impairment			679,712
Commercial & Industrial [Member]
Balance	1,308	1,308
Nonaccrual, No Allowance		51
Nonaccrual		308
Nonaccrual, Interest Income		0
Provision for expected credit losses		297
Charge-offs		(6)
Recoveries		0
Total ending allowance balance		1,144	1,308
Balance		1,144	1,308
Commercial & Industrial [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	(455)	(455)
Total ending allowance balance			(455)
Balance			(455)
Commercial Portfolio Segment [Member]
Balance	1,308	1,308	960
Individually evaluated for impairment			0
Provision for expected credit losses			348
Charge-offs	(6)		0
Recoveries			0
Total ending allowance balance			1,308
Balance			1,308
Loans individually evaluated for impairment			314
Total ending loans balance	127,811	127,811	112,826
Commercial Portfolio Segment [Member] | Financial Asset Acquired [Member]
Acquired loans collectively evaluated for impairment			0
Acquired loans collectively evaluated for impairment			622
Commercial Portfolio Segment [Member] | Financial Asset Originated [Member]
Acquired loans collectively evaluated for impairment			1,308
Acquired loans collectively evaluated for impairment			111,890
Commercial Real Estate Portfolio Segment [Member]
Balance	3,943	3,943	3,927
Individually evaluated for impairment			0
Provision for expected credit losses		(240)	15
Charge-offs		0	0
Recoveries		0	1
Total ending allowance balance		3,650	3,943
Balance		3,650	3,943
Loans individually evaluated for impairment			88
Total ending loans balance			342,701
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	(53)	(53)
Total ending allowance balance			(53)
Balance			(53)
Commercial Real Estate Portfolio Segment [Member] | Financial Asset Acquired [Member]
Acquired loans collectively evaluated for impairment			40
Acquired loans collectively evaluated for impairment			6,953
Commercial Real Estate Portfolio Segment [Member] | Financial Asset Originated [Member]
Acquired loans collectively evaluated for impairment			3,903
Acquired loans collectively evaluated for impairment			335,660
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loans [Member]
Nonaccrual, No Allowance		189
Nonaccrual		189
Nonaccrual, Interest Income		75
Charge-offs	0
Total ending loans balance	163,543	163,543
Residential Portfolio Segment [Member]
Balance	1,571	1,571	1,645
Nonaccrual, No Allowance		262
Individually evaluated for impairment			0
Nonaccrual		277
Nonaccrual, Interest Income		7
Provision for expected credit losses		277	(72)
Charge-offs		0	(6)
Recoveries		4	4
Total ending allowance balance		2,018	1,571
Balance		2,018	1,571
Loans individually evaluated for impairment			3
Total ending loans balance		197,143	190,839
Residential Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	166	166
Total ending allowance balance			166
Balance			166
Residential Portfolio Segment [Member] | Financial Asset Acquired [Member]
Acquired loans collectively evaluated for impairment			74
Acquired loans collectively evaluated for impairment			23,038
Residential Portfolio Segment [Member] | Financial Asset Originated [Member]
Acquired loans collectively evaluated for impairment			1,497
Acquired loans collectively evaluated for impairment			167,798
Residential Portfolio Segment [Member] | Owner Occupied Loans [Member]
Total ending loans balance			158,437
Consumer Portfolio Segment [Member]
Balance	902	902	628
Individually evaluated for impairment			0
Provision for expected credit losses		450	564
Charge-offs		(560)	(441)
Recoveries		160	151
Total ending allowance balance		855	902
Balance		855	902
Loans individually evaluated for impairment			0
Total ending loans balance		72,674	65,594
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	(97)	(97)
Total ending allowance balance			(97)
Balance			(97)
Consumer Portfolio Segment [Member] | Financial Asset Acquired [Member]
Acquired loans collectively evaluated for impairment			0
Acquired loans collectively evaluated for impairment			1,230
Consumer Portfolio Segment [Member] | Financial Asset Originated [Member]
Acquired loans collectively evaluated for impairment			902
Acquired loans collectively evaluated for impairment			64,364
Farmland [Member]
Balance	0	0
Provision for expected credit losses		(4)
Charge-offs	0	0
Recoveries		0
Total ending allowance balance		89	0
Balance		89	0
Total ending loans balance	38,799	38,799
Farmland [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	93	93
Total ending allowance balance			93
Balance			93
Land Development [Member]
Balance	0	0
Provision for expected credit losses		(224)
Charge-offs	0	0
Recoveries		0
Total ending allowance balance		174	0
Balance		174	0
Total ending loans balance	12,615	12,615
Land Development [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	$ 398	$ 398
Total ending allowance balance			398
Balance			$ 398