XML 88 R70.htm IDEA: XBRL DOCUMENT
v3.25.1

Note 5 - Loan Servicing - Schedule of Principal Balances of Mortgage and SBA Loans Serviced for Others (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Mortgages [Member] |  |
Loans serviced for others | $ 922,183 | $ 1,014,017
Small Business Administration Loans [Member] |  |
Loans serviced for others | 92,678 | 100,336
Commerical Real Estate Loans [Member] |  |
Loans serviced for others | 3,761 | 3,813
Construction Loans [Member] |  |
Loans serviced for others | $ 7,315 | $ 4,710

X
- Definition Represent amount of loans serviced for others. + References No definition available. + Details
Name: | rbb_LoansServicedForOthers
Namespace Prefix: | rbb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_MortgagesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=rbb_SmallBusinessAdministrationLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=rbb_CommericalRealEstateLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |