Note 14 - Fair Value - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Jun. 30, 2025
Securities, available-for-sale	$ 257,584	$ 273,875
Equity securities	0	392
US Treasury Securities [Member]
Securities, available-for-sale	993	2,937
US Government-sponsored Enterprises Debt Securities [Member]
Securities, available-for-sale	20,579	23,737
US States and Political Subdivisions Debt Securities [Member]
Securities, available-for-sale	80,425	75,459
Residential Mortgage-Backed Securities [Member]
Securities, available-for-sale	72,930	80,332
Commercial Mortgage-Backed Securities [Member]
Securities, available-for-sale	8,529	7,106
Other Debt Obligations [Member]
Securities, available-for-sale	14,223	17,243
Fair Value, Recurring [Member]
Equity securities		392
Fair Value, Recurring [Member] \| Swap [Member]
Derivative assets - interest rate swaps	103
Derivative liabilities – interest rate swaps	103
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Equity securities		0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Swap [Member]
Derivative assets - interest rate swaps	0
Derivative liabilities – interest rate swaps	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Equity securities		392
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Swap [Member]
Derivative assets - interest rate swaps	103
Derivative liabilities – interest rate swaps	103
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Equity securities		0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Swap [Member]
Derivative assets - interest rate swaps	0
Derivative liabilities – interest rate swaps	0
Fair Value, Recurring [Member] \| US Treasury Securities [Member]
Securities, available-for-sale	993	2,937
Fair Value, Recurring [Member] \| US Treasury Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities, available-for-sale	993	2,937
Fair Value, Recurring [Member] \| US Treasury Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| US Treasury Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| US Government-sponsored Enterprises Debt Securities [Member]
Securities, available-for-sale	20,579	23,737
Fair Value, Recurring [Member] \| US Government-sponsored Enterprises Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| US Government-sponsored Enterprises Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities, available-for-sale	20,579	23,737
Fair Value, Recurring [Member] \| US Government-sponsored Enterprises Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member]
Securities, available-for-sale	80,425	75,459
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities, available-for-sale	80,425	75,459
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| Residential Mortgage-Backed Securities [Member]
Securities, available-for-sale	72,930	80,332
Fair Value, Recurring [Member] \| Residential Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| Residential Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities, available-for-sale	72,930	80,332
Fair Value, Recurring [Member] \| Residential Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| Commercial Mortgage-Backed Securities [Member]
Securities, available-for-sale	8,529	7,106
Fair Value, Recurring [Member] \| Commercial Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| Commercial Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities, available-for-sale	8,529	7,106
Fair Value, Recurring [Member] \| Commercial Mortgage-Backed Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member]
Securities, available-for-sale	59,905	67,061
Fair Value, Recurring [Member] \| Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities, available-for-sale	59,905	67,061
Fair Value, Recurring [Member] \| Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| Other Debt Obligations [Member]
Securities, available-for-sale	14,223	17,243
Fair Value, Recurring [Member] \| Other Debt Obligations [Member] \| Fair Value, Inputs, Level 1 [Member]
Securities, available-for-sale	0	0
Fair Value, Recurring [Member] \| Other Debt Obligations [Member] \| Fair Value, Inputs, Level 2 [Member]
Securities, available-for-sale	14,223	17,243
Fair Value, Recurring [Member] \| Other Debt Obligations [Member] \| Fair Value, Inputs, Level 3 [Member]
Securities, available-for-sale	$ 0	$ 0