BORROWINGS - Long-term Borrowings (Details) $ in Millions	Sep. 30, 2023 USD ($)
Federal Home Loan Bank Of Indianapolis Notes One Point Six One Percentage Due January Seven Two Thousand Twenty
Debt Instrument [Line Items]
Interest rate	4.21%
FHLB bullet advance	$ 275.0
Federal Home Loan Bank Advances
Debt Instrument [Line Items]
Long-term FHLB advances	$ 90.0
Interest rate	5.55%