XML 80 R71.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Other Commitments [Line Items] |  |
Outstanding loan commitments | $ 654,200 | $ 475,100
Future commitments outstanding related to investments | 10,800 |
SBIC [Member] |  |
Other Commitments [Line Items] |  |
Future commitments outstanding related to investments | 10,700 |
Other Liabilities [Member] |  |
Other Commitments [Line Items] |  |
Reserves for unfunded commitments to borrowers | 1,400 | 962
Performance Stand-by Letters of Credit [Member] |  |
Other Commitments [Line Items] |  |
Outstanding stand-by letters of credit | 0 | 655
Financial Stand-by Letters of Credit [Member] |  |
Other Commitments [Line Items] |  |
Outstanding stand-by letters of credit | $ 29,800 | $ 4,500

X
- Definition Future commitments outstanding related to investments. + References No definition available. + Details
Name: | brbs_FutureCommitmentsOutstandingRelatedToInvestments
Namespace Prefix: | brbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Outstanding loan commitments. + References No definition available. + Details
Name: | brbs_OutstandingLoanCommitments
Namespace Prefix: | brbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reserves for unfunded commitments to borrowers. + References No definition available. + Details
Name: | brbs_ReservesForUnfundedCommitmentsToBorrowers
Namespace Prefix: | brbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsCurrentCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_OtherCommitmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_OtherInvestmentCompaniesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=brbs_PerformanceStandByLettersOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=brbs_FinancialStandByLettersOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |