Note 3 - Loans and Allowance for Credit Losses - Loans Past Due (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024
Recorded investment	$ 766,473	$ 759,114
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	8	84
Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	1,073	1,180
Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	345	98
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	617	671
Financial Asset, Past Due [Member]
Recorded investment	2,035	1,949
Financial Asset, Not Past Due [Member]
Recorded investment	764,438	757,165
Commercial Portfolio Segment [Member]
Recorded investment	125,096	127,811
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	0	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	256	308
Commercial Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	256	308
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	124,840	127,503
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loans [Member]
Recorded investment	165,730	163,543
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied Loans [Member]
Recorded investment	150,925	146,529
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member] | Owner Occupied Loans [Member]
Recorded investment	195	311
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, 60 to 89 Days Past Due [Member] | Owner Occupied Loans [Member]
Recorded investment	0	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, Equal to or Greater than 90 Days Past Due [Member] | Owner Occupied Loans [Member]
Recorded investment	138	189
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	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Owner Occupied Loans [Member]
Recorded investment	333	500
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Non-owner Occupied Loans [Member]
Recorded investment	0	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Owner Occupied Loans [Member]
Recorded investment	165,397	163,043
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Non-owner Occupied Loans [Member]
Recorded investment	150,925	146,529
Farmland [Member]
Recorded investment	38,379	38,799
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Farmland [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	0	0
Farmland [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	0	0
Farmland [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	0	0
Farmland [Member] | Financial Asset, Past Due [Member]
Recorded investment	0	0
Farmland [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	38,379	38,799
Land Development [Member]
Recorded investment	13,341	12,615
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Land Development [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	0	0
Land Development [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	0	0
Land Development [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	0	0
Land Development [Member] | Financial Asset, Past Due [Member]
Recorded investment	0	0
Land Development [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	13,341	12,615
Residential Portfolio Segment [Member]
Recorded investment	197,144	197,143
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	68
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	397	294
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	189	0
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	215	158
Residential Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	801	452
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	196,343	196,691
Consumer Portfolio Segment [Member]
Recorded investment	75,858	72,674
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	8	16
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	481	575
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	156	98
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	8	16
Consumer Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	645	689
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	$ 75,213	$ 71,985