XML 89 R78.htm IDEA: XBRL DOCUMENT
v3.20.2

Note 13 - Commitments - Schedule of Financial Commitments Represents Credit Risk (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financial commitments, contractual amount | $ 451,521 | $ 330,199
Standby Letters of Credit [Member] |  |
Financial commitments, contractual amount | 4,114 | 3,715
Commitments to Extend Credit [Member] |  |
Financial commitments, contractual amount | 447,111 | 326,126
Commercial And Similar Letters Of Credit [Member] |  |
Financial commitments, contractual amount | $ 296 | $ 358

X
- Definition The face amount of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References No definition available. + Details
Name: | us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_StandbyLettersOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CommitmentsToExtendCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=rbb_CommercialAndSimilarLettersOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |