XML 118 R100.htm IDEA: XBRL DOCUMENT v3.25.1
Note 17 - Regulatory Matters - Summary of Company and Bank Continue to Exceed Regulatory Capital Minimum Requirements and Bank Continues to Exceed Well Capitalized Standards (Details)
$ in Thousands
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
RBB Bancorp [Member]    
Tier 1 Leverage Ratio, Amount $ 469,785 $ 472,152
Tier 1 Leverage Ratio, Ratio 0.1192 0.1199
Tier 1 Leverage Ratio, Minimum Required for Capital Adequacy Purposes Amount $ 157,660 $ 157,526
Tier 1 Leverage Ratio, Minimum Required for Capital Adequacy Purposes Ratio [1] 0.04 0.04
Tier 1 Leverage Ratio, Minimum Required Plus Capital Conservation Buffer Fully Phased-In Amount $ 197,075 $ 196,907
Tier 1 Leverage Ratio, Minimum Required Plus Capital Conservation Buffer Fully Phased-In Ratio 5.00% 5.00%
Common Equity Tier 1 Risk-Based Capital Ratio, Amount $ 455,084 $ 457,214
Common Equity Tier 1 Risk-Based Capital Ratio, Ratio 0.1794 0.1907
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Amount $ 114,133 $ 107,886
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Ratio [1] 4.50% 4.50%
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Required Plus Capital Conversation Buffer Fully Phased-In, Amount $ 164,859 $ 155,836
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Required Plus Capital Conversation Buffer Fully Phased-In, Ratio 0.065 0.065
Tier 1 Risk-Based Capital Ratio, Amount $ 469,785 $ 472,152
Tier 1 Risk-Based Capital Ratio, Ratio 0.1852 0.1969
Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Amount $ 152,178 $ 143,849
Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Ratio [1] 0.06 0.06
Tier 1 Risk-Based Capital Ratio, Minimum Required Plus Capital Conversation Buffer Fully Phased-In, Amount $ 202,903 $ 191,798
Tier 1 Risk-Based Capital Ratio, Minimum Required Plus Capital Conversation Buffer Fully Phased-In, Ratio 8.00% 8.00%
Total Risk-Based Capital Ratio, Amount $ 621,225 $ 621,423
Total Risk-Based Capital Ratio, Ratio 0.2449 0.2592
Total Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Amount $ 202,903 $ 191,798
Total Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Ratio [1] 0.08 0.08
Total Risk-Based Capital Ratio, Minimum Required Plus Capital Conversation Buffer Fully Phased-In, Amount $ 253,629 $ 239,748
Total Risk-Based Capital Ratio, Minimum Required Plus Capital Conversation Buffer Fully Phased-In, Ratio 10.00% 10.00%
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Amount $ 114,133 $ 107,886
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Ratio [1] 4.50% 4.50%
Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes, Amount $ 152,178 $ 143,849
Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Ratio [1] 0.06 0.06
Royal Business Bank [Member]    
Tier 1 Leverage Ratio, Amount $ 549,889 $ 535,952
Tier 1 Leverage Ratio, Ratio 0.1396 0.1362
Tier 1 Leverage Ratio, Minimum Required for Capital Adequacy Purposes Amount $ 157,529 $ 157,454
Tier 1 Leverage Ratio, Minimum Required for Capital Adequacy Purposes Ratio [1] 0.04 0.04
Tier 1 Leverage Ratio, Minimum Required Plus Capital Conservation Buffer Fully Phased-In Amount $ 196,912 $ 196,818
Tier 1 Leverage Ratio, Minimum Required Plus Capital Conservation Buffer Fully Phased-In Ratio 5.00% 5.00%
Common Equity Tier 1 Risk-Based Capital Ratio, Amount $ 549,889 $ 535,952
Common Equity Tier 1 Risk-Based Capital Ratio, Ratio 0.2174 0.2241
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Amount $ 113,843 $ 107,598
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Ratio [1] 4.50% 4.50%
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Required Plus Capital Conversation Buffer Fully Phased-In, Amount $ 164,440 $ 155,419
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Required Plus Capital Conversation Buffer Fully Phased-In, Ratio 0.065 0.065
Tier 1 Risk-Based Capital Ratio, Amount $ 549,889 $ 535,952
Tier 1 Risk-Based Capital Ratio, Ratio 0.2174 0.2241
Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Amount $ 151,791 $ 143,464
Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Ratio [1] 0.06 0.06
Tier 1 Risk-Based Capital Ratio, Minimum Required Plus Capital Conversation Buffer Fully Phased-In, Amount $ 202,388 $ 191,285
Tier 1 Risk-Based Capital Ratio, Minimum Required Plus Capital Conversation Buffer Fully Phased-In, Ratio 8.00% 8.00%
Total Risk-Based Capital Ratio, Amount $ 581,720 $ 565,997
Total Risk-Based Capital Ratio, Ratio 0.2299 0.2367
Total Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Amount $ 202,388 $ 191,285
Total Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Ratio [1] 0.08 0.08
Total Risk-Based Capital Ratio, Minimum Required Plus Capital Conversation Buffer Fully Phased-In, Amount $ 252,985 $ 239,106
Total Risk-Based Capital Ratio, Minimum Required Plus Capital Conversation Buffer Fully Phased-In, Ratio 10.00% 10.00%
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Amount $ 113,843 $ 107,598
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Ratio [1] 4.50% 4.50%
Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes, Amount $ 151,791 $ 143,464
Tier 1 Risk-Based Capital Ratio, Minimum Required for Capital Adequacy Purposes Ratio [1] 0.06 0.06
[1] These ratios are exclusive of the 2.5% capital conservation buffer.