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Stock-based Compensation Plans (Narrative) (Details) - shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Oct. 21, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised
Number of Options		636
Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised	0	0
1999 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares not granted			25,832
Number of Options	0
2018 Bank Of The James Financial Group, Inc. Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted	0

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Share Based Compensation Arrangment By Sharebased Payment Options Not Yet Granted

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