| Value | {"amount": 375357000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "currency": "USD"} |
|---|---|
| Period | (as of 2026-03-31) |
| Status | current |
| Entity | NB Bancorp, Inc. |
0001104659-26-057822f7bde1a401b286c74a2fd824ee1df541…