Note 3 - Loans and Allowance for Credit Losses - Loans Past Due (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025
Recorded investment	$ 834,882	$ 813,458
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	62	101
Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	295	379
Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	673	242
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	864	807
Financial Asset, Past Due [Member]
Recorded investment	1,832	1,428
Financial Asset, Not Past Due [Member]
Recorded investment	833,050	812,030
Commercial Portfolio Segment [Member]
Recorded investment	117,508	113,513
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	77
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	82	48
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	332	332
Commercial Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	414	457
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	117,094	113,056
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loans [Member]
Recorded investment	166,400	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	164,452	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	166,400	162,674
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] | Non-owner Occupied Loans [Member]
Recorded investment	164,452	163,768
Farmland [Member]
Recorded investment	44,984	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	44,984	42,050
Land Development [Member]
Recorded investment	17,022	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	17,022	17,535
Residential Portfolio Segment [Member]
Recorded investment	206,741	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	7	57
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	487	161
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	470	374
Residential Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	964	592
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	205,777	201,010
Consumer Portfolio Segment [Member]
Recorded investment	117,775	112,316
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	62	101
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Recorded investment	288	245
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Recorded investment	104	33
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Recorded investment	62	101
Consumer Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Recorded investment	454	379
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Recorded investment	$ 117,321	$ 111,937