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Regulatory Matters (Tables) | 12 Months Ended
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Dec. 31, 2023
BCB Community Bank [Member] |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations |
|  |  |  |  |  |  |  | For Capital Adequacy |  |  | To be Well Capitalized under Prompt Corrective |
| Actual |  |  |  | Purposes |  |  | Action Provisions |
|  | Amount |  |  | Ratio |  |  |  | Amount |  |  | Ratio |  |  |  | Amount |  |  | Ratio |
|  | (Dollars in Thousands)
As of December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Community Bank Leverage Ratio | $ | 350,749 |  |  | 9.09 | % |  | $ | 308,608 |  |  | 8.00 | % |  | $ | 347,184 |  |  | 9.00 | %
As of December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Community Bank Leverage Ratio | $ | 327,806 |  |  | 9.86 | % |  | $ | 265,557 |  |  | 8.00 | % |  | $ | 298,752 |  |  | 9.00 | %
Bancorp [Member] |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations |
|  |  |  |  |  |  |  | For Capital Adequacy |  |  | To be Well Capitalized under Prompt Corrective |
| Actual |  |  |  | Purposes |  |  | Action Provisions |
|  | Amount |  |  | Ratio |  |  |  | Amount |  |  | Ratio |  |  |  | Amount |  |  | Ratio |
|  | (Dollars in Thousands)
As of December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bancorp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to Risk-Weighted Assets) | $ | 379,562 |  |  | 11.14 | % |  | $ | 272,564 |  |  | 8.00 | % |  | $ | 340,705 |  |  | 10.00 | %
Tier 1 Capital (to Risk-Weighted Assets) |  | 319,154 |  |  | 9.37 |  |  |  | 204,422 |  |  | 6.00 |  |  |  | 272,563 |  |  | 8.00 |
C/E Tier 1 Capital (to Risk-Weighted Assets) |  | 289,987 |  |  | 8.51 |  |  |  | 153,317 |  |  | 4.50 |  |  |  | 221,458 |  |  | 6.50 |
Tier 1 Capital (to adjusted total assets) |  | 319,154 |  |  | 8.27 |  |  |  | 154,315 |  |  | 4.00 |  |  |  | 192,894 |  |  | 5.00 |

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