Stock Option Plans - Delmar Bancorp Stock Option Plan (Details) - Delmar 2004 Stock Option Plan - Stock options - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Equity Compensation
Contractual life	10 years
Vesting period (in years)	4 years
Options available to be granted	0
Number of options exercised	0	5,000
Exercise price of option exercised		$ 1.98
Employees
Equity Compensation
Shares	13,895
Average price	$ 9.05
Amount	$ 125,750
Directors
Equity Compensation
Shares	4,514
Average price	$ 9.05
Amount	$ 40,852

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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