Amounts contributed to Employee Stock Purchase Plans during the period.

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Employee stock purchase plan percentage of market value.

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No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Aggregate number of common shares reserved for future issuance.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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-Publisher FASB
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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

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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 of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

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

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Percentage of vesting of share-based compensation awards.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Note 10 - Stock-based Compensation (Details Textual) - USD ($)	1 Months Ended		3 Months Ended
	Feb. 28, 2017	May 31, 2011	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	May 12, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value			$ 11,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value			103,000	$ 604,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value			34,000	40,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options			$ 115,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			2 years 189 days
Salaries and Employee Benefits [Member]
Allocated Share-based Compensation Expense			$ 1,900,000	$ 1,400,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	91,097		127,620	139,732
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number			247,351	312,871	296,192		369,093
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	36,523
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	100.00%
The2016 Plan [Member]
Common Stock, Capital Shares Reserved for Future Issuance						1,000,000
Stock Plan 2006 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant			0
Stock Plan 2006 [Member] \| Restricted Stock and PRSU [Member]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			2 years 113 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number			247,351
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options			$ 10,800,000
The 2011 ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized		550,000
Employee Stock Purchase Plan Percentage Of Market Value		85.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant			413,238
The 2011 ESPP [Member] \| Minimum Months Per Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period		150 days
The 2011 ESPP [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period		1 year
The 2011 ESPP [Member] \| Minimum [Member] \| Pay Period [Member]
Amount Contributed to ESPP		$ 10
The 2011 ESPP [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate		10.00%
The 2011 ESPP [Member] \| Maximum [Member] \| Offering Period [Member]
Amount Contributed to ESPP		$ 6,250
The 2011 ESPP [Member] \| Maximum [Member] \| Annually [Member]
Amount Contributed to ESPP		$ 25,000
Virginia Heritage Bank [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant			0
The Fidelity Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant			0