Condensed Financial Statements Of Parent Company (Condensed Statements Of Cash Flows Of Parent Company) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Condensed Cash Flow Statements, Captions [Line Items]
Net Income	$ 5,302	$ 2,922
Decrease (increase) in income taxes receivable	264	(152)
(Increase) in other assets	(258)	(3)
Increase in other liabilities	512	498
Net cash provided by (used in) operating activities	8,573	6,717
Net cash (used in) investing activities	(38,766)	(46,713)
Dividends paid to common stockholders	(1,050)	(1,050)
Proceeds from sale of 4% capital notes due 1/24/2022		5,000
Net cash provided by financing activities	43,500	48,331
(Decrease) increase in cash and cash equivalents	13,307	8,335
Cash and cash equivalents at beginning of period	37,018	28,683
Cash and cash equivalents at end of period	$ 50,325	$ 37,018
Capital Notes 4% Due 1/24/2022 [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Capital notes, interest rate		4.00%
Capital notes, maturity date	Jan. 24, 2022
Parent Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net Income	$ 5,302	$ 2,922
Decrease (increase) in income taxes receivable	95	(47)
(Increase) in other assets	(1)
Increase in other liabilities	58
Equity in undistributed net (income) of subsidiaries	(4,914)	(3,247)
Net cash provided by (used in) operating activities	540	(372)
Capital contributions to subsidiary Bank of the James		(3,000)
Net cash (used in) investing activities		(3,000)
Dividends paid to common stockholders	(1,050)	(1,050)
Proceeds from sale of 4% capital notes due 1/24/2022		5,000
Net cash provided by financing activities	(1,050)	3,950
(Decrease) increase in cash and cash equivalents	(510)	578
Cash and cash equivalents at beginning of period	859	281
Cash and cash equivalents at end of period	$ 349	$ 859
Parent Company [Member] \| Capital Notes 4% Due 1/24/2022 [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Capital notes, interest rate		4.00%
Capital notes, maturity date	Jan. 24, 2022

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.

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Contractual interest rate for funds borrowed, under the debt agreement.

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This element represents the undistributed income (or loss) of equity method investments, net of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations; such investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

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The increase (decrease) during the reporting period in income taxes receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of income taxes paid.

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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