Note 7 - Federal Home Loan Bank of Indianapolis Advances - Maturities of Currently Outstanding FHLBI Amortizing Advances (Details) - Federal Home Loan Bank of Indianapolis [Member] - Amortizing Advances [Member]	Jun. 30, 2023 USD ($)
2023	$ 0
2024	826,000
2025	862,000
2026	899,000
2027	938,000
Thereafter	$ 24,385,000

Note 7 - Federal Home Loan Bank of Indianapolis Advances - Maturities of Currently Outstanding FHLBI Amortizing Advances (Details) - Federal Home Loan Bank of Indianapolis [Member] - Amortizing Advances [Member]

Jun. 30, 2023

USD ($)

$ 0

826,000

862,000

899,000

938,000

$ 24,385,000