Note 3 - Loans and Allowance for Credit Losses - Loans Past Due (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023
Recorded investment	$ 717,921	$ 711,960
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	98	50
Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	621	455
Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	168	244
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	291	104
Financial Asset, Past Due [Member]
Recorded investment	1,080	803
Financial Asset, Not Past Due [Member]
Recorded investment	716,841	711,157
Commercial Portfolio Segment [Member]
Recorded investment	111,308	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	26	0
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	0	0
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	0	0
Commercial Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	26	0
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	111,282	112,826
Commercial Real Estate Portfolio Segment [Member]
Recorded investment		342,701
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loans [Member]
Recorded investment	154,425	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	143,017	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	51	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	51	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	154,374	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	143,017	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	40,509
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
Farmland [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment
Farmland [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment
Farmland [Member] | Financial Asset, Past Due [Member]
Recorded investment
Farmland [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	40,509
Land Development [Member]
Recorded investment	9,373
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	9,373
Residential Portfolio Segment [Member]
Recorded investment	190,563	190,839
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	18
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	15
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	0
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	160
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	175
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	190,388
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Construction Loans [Member]
Recorded investment		8,514
Consumer Portfolio Segment [Member]
Recorded investment	68,726	65,594
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	80	50
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	580	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	80	50
Consumer Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	828	608
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	$ 67,898	$ 64,986