BORROWINGS - Schedule of Advances From the Federal Home Loan Bank of Indianapolis ("FHLBI") (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Debt Instrument, Redemption [Line Items] | ||
| Short-term advance | $ 100,000 | $ 170,000 |
| Long-term advances | 1,300 | 1,200 |
| Federal Home Loan Bank of Indianapolis | ||
| Debt Instrument, Redemption [Line Items] | ||
| Short-term advance | 100,000 | 170,000 |
| Long-term advances | 1,300 | 1,200 |
| Total borrowings | 101,300 | 171,200 |
| Federal Home Loan Bank of Indianapolis | Housing Supply RBA, 1.00% due August 13, 2032 | ||
| Debt Instrument, Redemption [Line Items] | ||
| Long-term advances | 100 | $ 0 |
| Federal Home Loan Bank of Indianapolis | Community Development Financial Institution RBA, 0.00%, due March 12, 2035 | ||
| Debt Instrument, Redemption [Line Items] | ||
| Long-term advances | $ 1,200 |