Note 3 - Loans and Allowance for Credit Losses (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025
Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount)	$ 2,861	$ 2,674
Financing Receivable, Excluding Accrued Interest, Nonaccrual	902
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual	7
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual	93	151
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual	$ 802	706
Financial Asset, Not Past Due [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual		$ 73