XML 48 R39.htm IDEA: XBRL DOCUMENT
v3.22.2

Securities (Narrative) (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) security | Jun. 30, 2021 USD ($)
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |  |
Securities evaluated for other than temporary impairment |  | 117 |
Proceeds from Sale of Available-for-sale Securities | $ | $ 0 | $ 0 | $ 0
Publicly traded domestic corporations [Member] |  |  |
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |  |
Securities evaluated for other than temporary impairment |  | 10 |
US Agency Obligations [Member] |  |  |
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |  |
Securities evaluated for other than temporary impairment |  | 56 |
Municipals [Member] |  |  |
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |  |
Securities evaluated for other than temporary impairment |  | 51 |
Non-rated [Member] |  |  |
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |  |
Securities evaluated for other than temporary impairment |  | 1 |
S&P Rated AAA [Member] |  |  |
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |  |
Securities evaluated for other than temporary impairment |  | 46 |
S&P Rated AA [Member] |  |  |
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |  |
Securities evaluated for other than temporary impairment |  | 63 |
S&P Rated A [Member] |  |  |
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |  |
Securities evaluated for other than temporary impairment |  | 6 |
S&P Rated BBB [Member] |  |  |
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |  |
Securities evaluated for other than temporary impairment |  | 1 |

X
- Definition Number of securities evaluated for other than temporary impairment. + References No definition available. + Details
Name: | botj_NumberOfSecuritiesEvaluatedForOtherThanTemporaryImpairment
Namespace Prefix: | botj_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] + References No definition available. + Details
Name: | botj_NumberOfSecuritiesEvaluatedForOtherThanTemporaryImpairmentLineItems
Namespace Prefix: | botj_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI https://asc.fasb.org/extlink&oid=124260329&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3151-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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

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

X
- Details
Name: | srt_CreditRatingStandardPoorsAxis=botj_NonRatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CreditRatingStandardPoorsAxis=srt_StandardPoorsAAARatingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CreditRatingStandardPoorsAxis=srt_StandardPoorsAARatingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CreditRatingStandardPoorsAxis=srt_StandardPoorsARatingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CreditRatingStandardPoorsAxis=srt_StandardPoorsBBBRatingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |