XML 104 R91.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Concentration Of Credit Risk (Details) | Dec. 31, 2016 USD ($) item | Dec. 31, 2015 USD ($)
--- | --- | ---
Accounts secured by FDIC | 1 |
FDIC coverage amount | $ | $ 250,000 |
Uninsured cash balances | $ | $ 3,670,000 | $ 3,058,000
Community Bankers Bank [Member] |  |
Accounts secured by FDIC | 1 |
Suntrust Bank [Member] |  |
Accounts secured by FDIC | 1 |
Zions Bank [Member] |  |
Accounts secured by FDIC | 1 |

X
- Definition Accounts Secured By The Federal Deposit Insurance Corporation + References No definition available. + Details
Name: | botj_AccountsSecuredByFederalDepositInsuranceCorporation
Namespace Prefix: | botj_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation. + References No definition available. + Details
Name: | us-gaap_CashFDICInsuredAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation. + References No definition available. + Details
Name: | us-gaap_CashUninsuredAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=botj_CommunityBankersBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=botj_SuntrustBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=botj_ZionsBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |