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JUNIOR SUBORDINATED DEBENTURES - Additional Information (Details) | 6 Months Ended |
--- | --- | ---
Sep. 30, 2025 USD ($) item | Mar. 31, 2025 USD ($)
JUNIOR SUBORDINATED DEBENTURES |  |
Maximum number of consecutive quarters for deferred payment of each debenture | item | 20 |
Debentures issued to grantor trusts | $ 27,100,000 | $ 27,100,000
Common securities issued by grantor trusts | $ 836,000 | $ 836,000
Riverview Bancorp Statutory Trust I |  |
JUNIOR SUBORDINATED DEBENTURES |  |
Description of variable rate | three-month Chicago Mercantile Exchange (“CME”) Term SOFR |
Interest basis spread on variable rate | 1.36% |
Riverview Bancorp Statutory Trust II |  |
JUNIOR SUBORDINATED DEBENTURES |  |
Description of variable rate | three-month CME Term SOFR |
Interest basis spread on variable rate | 1.35% |
Merchants Bancorp Statutory Trust I |  |
JUNIOR SUBORDINATED DEBENTURES |  |
Description of variable rate | three-month CME Term SOFR |
Interest basis spread on variable rate | 3.10% |

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