XML 17 R95.htm IDEA: XBRL DOCUMENT
v3.20.1

Fair Value - Summary of OREO Measured at Fair Value on a Nonrecurring Basis (Detail) - Fair Value, Nonrecurring [Member] $ in Thousands | Dec. 31, 2018 USD ($)
--- | ---
Disclosure of Other Real Estate Owned Measured at Fair Value on a Nonrecurring Basis Table [Line Items] |
Other real estate owned, fair value | $ 134
Level 3 [Member] |
Disclosure of Other Real Estate Owned Measured at Fair Value on a Nonrecurring Basis Table [Line Items] |
Other real estate owned, fair value | $ 134

X
- Definition Disclosure of Other Real Estate Owned Measured at Fair Value on a Nonrecurring Basis Table [Line Items] + References No definition available. + Details
Name: | brbs_DisclosureOfOtherRealEstateOwnedMeasuredAtFairValueOnANonrecurringBasistableLineItems
Namespace Prefix: | brbs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other real estate owned fair value disclosures. + References No definition available. + Details
Name: | brbs_OtherRealEstateOwnedFairValueDisclosure
Namespace Prefix: | brbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |