Note 3 - Loans and Allowance for Credit Losses - Loans Past Due (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Jun. 30, 2025
Recorded investment	$ 904,057	$ 813,458
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	21	101
Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	1,089	379
Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	91	242
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	460	807
Financial Asset, Past Due [Member]
Recorded investment	1,640	1,428
Financial Asset, Not Past Due [Member]
Recorded investment	902,417	812,030
Commercial and Industrial [Member]
Recorded investment	153,408	113,513
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Commercial and Industrial [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	0	77
Commercial and Industrial [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	0	48
Commercial and Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	140	332
Commercial and Industrial [Member] | Financial Asset, Past Due [Member]
Recorded investment	140	457
Commercial and Industrial [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	153,268	113,056
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loans [Member]
Recorded investment	166,698	162,674
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	183,035	163,768
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	0	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, 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	0	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	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member] | Owner Occupied Loans [Member]
Recorded investment	0	0
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	166,698	162,674
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Non-owner Occupied Loans [Member]
Recorded investment	183,035	163,768
Farmland [Member]
Recorded investment	47,848	42,050
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	47,848	42,050
Land Development [Member]
Recorded investment	17,788	17,535
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	17,788	17,535
Residential Portfolio Segment [Member]
Recorded investment	207,548	201,602
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	903	57
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	64	161
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	299	374
Residential Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	1,266	592
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	206,282	201,010
Consumer Portfolio Segment [Member]
Recorded investment	127,732	112,316
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	21	101
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	186	245
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	27	33
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	21	101
Consumer Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	234	379
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	$ 127,498	$ 111,937