DEBT SECURITIES - Amortized cost and fair value of securities available-for-sale (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] | ||
| Amortized Cost | $ 154,271 | $ 45,623 |
| Gross Unrealized Gains | 40 | 54 |
| Gross Unrealized Losses | (1,767) | (70) |
| Fair Value | 152,544 | 45,607 |
| Allowance for Credit Losses | 0 | 0 |
| Residential mortgage-backed securities issued by U.S. government agencies and sponsored enterprises | ||
| Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] | ||
| Amortized Cost | 154,271 | 45,623 |
| Gross Unrealized Gains | 40 | 54 |
| Gross Unrealized Losses | (1,767) | (70) |
| Fair Value | 152,544 | 45,607 |
| Allowance for Credit Losses | $ 0 | $ 0 |