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Regulatory Matters (Tables) | 12 Months Ended
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Dec. 31, 2025
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, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Community Bank Leverage Ratio | $ | 344,067 |  |  | 10.39 | % |  | $ | 264,922 |  |  | 8.00 | % |  | $ | 298,037 |  |  | 9.00 | %
As of December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Community Bank Leverage Ratio | $ | 363,697 |  |  | 10.03 | % |  | $ | 290,087 |  |  | 8.00 | % |  | $ | 326,348 |  |  | 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, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bancorp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to Risk-Weighted Assets) | $ | 377,318 |  |  | 13.43 | % |  | $ | 224,761 |  |  | 8.00 | % |  | $ | 280,952 |  |  | 10.00 | %
Tier 1 Capital (to Risk-Weighted Assets) |  | 304,541 |  |  | 10.84 |  |  |  | 168,565 |  |  | 6.00 |  |  |  | 168,565 |  |  | 6.00 |
C/E Tier 1 Capital (to Risk-Weighted Assets) |  | 275,174 |  |  | 9.79 |  |  |  | 126,484 |  |  | 4.50 |  |  |  | - |  |  | - |
Tier 1 Capital (to adjusted total assets) |  | 304,541 |  |  | 9.20 |  |  |  | 132,409 |  |  | 4.00 |  |  |  | - |  |  | - |
|  |  |  |  |  |  |  | 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, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bancorp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to Risk-Weighted Assets) | $ | 400,591 |  |  | 12.89 | % |  | $ | 248,621 |  |  | 8.00 | % |  | $ | 310,777 |  |  | 10.00 | %
Tier 1 Capital (to Risk-Weighted Assets) |  | 326,965 |  |  | 10.52 |  |  |  | 186,482 |  |  | 6.00 |  |  |  | 186,482 |  |  | 6.00 |
C/E Tier 1 Capital (to Risk-Weighted Assets) |  | 298,118 |  |  | 9.59 |  |  |  | 139,889 |  |  | 4.50 |  |  |  | - |  |  | - |
Tier 1 Capital (to adjusted total assets) |  | 326,965 |  |  | 9.02 |  |  |  | 144,996 |  |  | 4.00 |  |  |  | - |  |  | - |

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