Note 3 - Loans and Allowance for Credit Losses - Loans Past Due (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Jun. 30, 2023
Recorded investment	$ 742,584	$ 711,960
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	66	50
Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	1,383	455
Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	244	244
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	900	104
Financial Asset, Past Due [Member]
Recorded investment	2,527	803
Financial Asset, Not Past Due [Member]
Recorded investment	740,057	711,157
Commercial Portfolio Segment [Member]
Recorded investment	115,446	112,826
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	6	0
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	54	0
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	332	0
Commercial Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	392	0
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	115,054	112,826
Commercial Real Estate Portfolio Segment [Member]
Recorded investment		342,701
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loans [Member]
Recorded investment	159,461	158,437
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Recorded investment		23,996
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied Loans [Member]
Recorded investment	151,230	23,888
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Commercial Real Estate Portfolio Segment [Member] | Other Commercial Real Estate Loans [Member]
Recorded investment		318,705
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Owner Occupied Loans [Member]
Recorded investment	0	17
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Construction Loans [Member]
Recorded investment		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Non-owner Occupied Loans [Member]
Recorded investment	0	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Other Commercial Real Estate Loans [Member]
Recorded investment		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Owner Occupied Loans [Member]
Recorded investment	0	124
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Construction Loans [Member]
Recorded investment		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Non-owner Occupied Loans [Member]
Recorded investment	0	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Other Commercial Real Estate Loans [Member]
Recorded investment		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Owner Occupied Loans [Member]
Recorded investment	429	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Loans [Member]
Recorded investment		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-owner Occupied Loans [Member]
Recorded investment	0	3
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Other Commercial Real Estate Loans [Member]
Recorded investment		51
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Owner Occupied Loans [Member]
Recorded investment	429	141
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Construction Loans [Member]
Recorded investment		0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Non-owner Occupied Loans [Member]
Recorded investment	0	3
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Other Commercial Real Estate Loans [Member]
Recorded investment		51
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Owner Occupied Loans [Member]
Recorded investment	159,032	158,296
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Construction Loans [Member]
Recorded investment		23,996
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Non-owner Occupied Loans [Member]
Recorded investment	151,230	23,885
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Other Commercial Real Estate Loans [Member]
Recorded investment		318,654
Farmland [Member]
Recorded investment	39,050
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0
Farmland [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	0
Farmland [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	0
Farmland [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	0
Farmland [Member] | Financial Asset, Past Due [Member]
Recorded investment	0
Farmland [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	39,050
Land Development [Member]
Recorded investment	12,095
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0
Land Development [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	0
Land Development [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	0
Land Development [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	0
Land Development [Member] | Financial Asset, Past Due [Member]
Recorded investment	0
Land Development [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	12,095
Residential Portfolio Segment [Member]
Recorded investment	192,943	190,839
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0
Residential Portfolio Segment [Member] | Construction Loans [Member]
Recorded investment		8,514
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing		0
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	793
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Construction Loans [Member]
Recorded investment		0
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	22
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] | Construction Loans [Member]
Recorded investment		0
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	73
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Loans [Member]
Recorded investment		0
Residential Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	888
Residential Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Construction Loans [Member]
Recorded investment		0
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	192,055
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Construction Loans [Member]
Recorded investment		8,514
Consumer Portfolio Segment [Member]
Recorded investment	72,359	65,594
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	66	50
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	584	438
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	168	120
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	66	50
Consumer Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	818	608
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	$ 71,541	$ 64,986