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Loans, Allowance For Loan Losses and OREO (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015 contract	Mar. 31, 2014 contract	Dec. 31, 2014
Loans, Allowance For Loan Losses and OREO [Abstract]
Amount of Loan Modification	$ 20,000us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
Number of loans classified as TDRs		0botj_TroubledDebtRestructuringModificationsNumberOfContracts
Number of Contracts (That Subsequently Defaulted)	0botj_FinancingReceivablesDefaultsNumberOfDefaults	0botj_FinancingReceivablesDefaultsNumberOfDefaults
Other real estate owned	$ 65,000us-gaap_OtherRealEstate		$ 65,000us-gaap_OtherRealEstate

X

- Definition

Financing receivables, defaults, number of defaults

+ References

No definition available.

+ Details

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- Definition

Troubled Debt Restructuring Modifications Number Of Contracts

+ References

No definition available.

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- Details

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X

- Definition

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 34

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953682-111524

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- Definition

Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10(4))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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