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REGULATORY CAPITAL MATTERS - Schedule of the Company's and Bank's actual capital amounts and ratios (Details) $ in Thousands | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
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Common equity Tier 1 capital / % of risk weighted assets |  |
Actual, Ratio (as a percent) | 0.045 | 0.070
Tier 1 Capital / % of risk weighted assets |  |
Actual, Ratio (as a percent) | 0.060 | 0.085
Total Capital / % of risk weighted assets |  |
Actual, Ratio (as a percent) | 0.080 | 0.105
Basel III |  |
Tier 1 Capital / % of average total assets |  |
Actual, Amount | $ 1,158,455 | $ 1,103,498
Actual, Ratio (as a percent) | 0.085 | 0.085
For Capital Adequacy Purposes, Amount | $ 544,529 | $ 517,914
For Capital Adequacy Purposes, Minimum Ratio (as a percent) | 0.040 | 0.040
Common equity Tier 1 capital / % of risk weighted assets |  |
Actual, Amount | $ 1,041,886 | $ 986,928
Actual, Ratio (as a percent) | 0.098 | 0.092
For Capital Adequacy Purposes, Amount | $ 476,341 | $ 485,243
For Capital Adequacy Purposes, Minimum Ratio (as a percent) | 0.045% | 0.045%
Tier 1 Capital / % of risk weighted assets |  |
Actual, Amount | $ 1,158,455 | $ 1,103,498
Actual, Ratio (as a percent) | 0.109 | 0.102
For Capital Adequacy Purposes, Amount | $ 635,122 | $ 646,990
For Capital Adequacy Purposes, Minimum Ratio (as a percent) | 0.060 | 0.060
Total Capital / % of risk weighted assets |  |
Actual, Amount | $ 1,433,361 | $ 1,390,272
Actual, Ratio (as a percent) | 0.135 | 0.129
For Capital Adequacy Purposes, Amount | $ 846,829 | $ 862,654
For Capital Adequacy Purposes, Minimum Ratio (as a percent) | 0.080 | 0.080
BNB Bank | Basel III |  |
Tier 1 Capital / % of average total assets |  |
Actual, Amount | $ 1,331,676 | $ 1,286,656
Actual, Ratio (as a percent) | 0.098 | 0.100
For Capital Adequacy Purposes, Amount | $ 544,254 | $ 517,606
For Capital Adequacy Purposes, Minimum Ratio (as a percent) | 0.040 | 0.040
To Be Categorized as "Well Capitalized", Amount | $ 680,318 | $ 647,008
To Be Categorized as "Well Capitalized", Minimum Ratio (as a percent) | 0.050 | 0.050
Common equity Tier 1 capital / % of risk weighted assets |  |
Actual, Amount | $ 1,331,676 | $ 1,286,656
Actual, Ratio (as a percent) | 0.126 | 0.119
For Capital Adequacy Purposes, Amount | $ 476,168 | $ 485,062
For Capital Adequacy Purposes, Minimum Ratio (as a percent) | 0.045% | 0.045%
To Be Categorized as "Well Capitalized", Amount | $ 687,798 | $ 700,645
To Be Categorized as "Well Capitalized", Minimum Ratio (as a percent) | 0.065% | 0.065%
Tier 1 Capital / % of risk weighted assets |  |
Actual, Amount | $ 1,331,676 | $ 1,286,656
Actual, Ratio (as a percent) | 0.126 | 0.119
For Capital Adequacy Purposes, Amount | $ 634,890 | $ 646,749
For Capital Adequacy Purposes, Minimum Ratio (as a percent) | 0.060 | 0.060
To Be Categorized as "Well Capitalized", Amount | $ 846,520 | $ 862,332
To Be Categorized as "Well Capitalized", Minimum Ratio (as a percent) | 0.080 | 0.080
Total Capital / % of risk weighted assets |  |
Actual, Amount | $ 1,406,581 | $ 1,373,431
Actual, Ratio (as a percent) | 0.133 | 0.127
For Capital Adequacy Purposes, Amount | $ 846,520 | $ 862,332
For Capital Adequacy Purposes, Minimum Ratio (as a percent) | 0.080 | 0.080
To Be Categorized as "Well Capitalized", Amount | $ 1,058,151 | $ 1,077,915
To Be Categorized as "Well Capitalized", Minimum Ratio (as a percent) | 0.100 | 0.100

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