Amount of cash paid in lieu of fractional shares.

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Amount of deferred tax expense from write-off of the deferred tax asset related to deductible stock options at exercise.

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Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

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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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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Number of shares issued which are neither cancelled nor held in the treasury.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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Number of new stock issued during the period.

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Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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

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Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.

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Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited.

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Value of stock issued as a result of the exercise of stock options.

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Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (USD $) In Thousands, except Share data	Preferred Stock [Member]	Common Stock [Member]	Warrant [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Comprehensive Income [Member]	Total
Beginning balance at Dec. 31, 2013	$ 56,600	$ 253	$ 946	$ 242,990	$ 96,393	$ (3,319)	$ 393,863us-gaap_StockholdersEquity
Beginning balance, shares (in Shares) at Dec. 31, 2013	56,600	25,885,863
Net Income					12,499		12,499us-gaap_NetIncomeLoss
Net change in other comprehensive income						2,817	2,817
Stock-based compensation				892			892us-gaap_ShareBasedCompensation
Issuance of common stock related to options exercised				250			250
Issuance of common stock related to options exercised, shares (in Shares)		19,027					19,027
Tax benefits related to non-qualified stock compensation				75			75
Issuance of common stock upon vesting of restricted stock awards, net of shares withheld for payroll taxes		2		(2)
Issuance of common stock upon vesting of restricted stock awards, net of shares withheld for payroll taxes, shares (in Shares)		(13,110)
Restricted stock awards granted (in Shares)		78,947
Issuance of common stock related to employee stock purchase plan				127			127
Issuance of common stock related to employee stock purchase plan, shares (in Shares)		4,459
Preferred stock dividends					(141)		(141)us-gaap_DividendsPreferredStock
Ending balance at Mar. 31, 2014	56,600	255	946	244,332	108,751	(502)	410,382us-gaap_StockholdersEquity
Ending balance, shares (in Shares) at Mar. 31, 2014	56,600	25,975,186
Beginning balance at Dec. 31, 2014	71,900	296	946	394,933	150,037	2,647	620,759us-gaap_StockholdersEquity
Beginning balance, shares (in Shares) at Dec. 31, 2014	71,900	30,139,396
Net Income					19,418		19,418us-gaap_NetIncomeLoss
Net change in other comprehensive income						633	633
Stock-based compensation				1,148			1,148us-gaap_ShareBasedCompensation
Issuance of common stock related to options exercised		3		3,435			3,438
Issuance of common stock related to options exercised, shares (in Shares)		279,373					280,425
Tax benefits related to non-qualified stock compensation				1,450			1,450
Issuance of common stock upon vesting of restricted stock awards, net of shares withheld for payroll taxes		2		(2)
Issuance of common stock upon vesting of restricted stock awards, net of shares withheld for payroll taxes, shares (in Shares)		(15,039)
Restricted stock awards granted (in Shares)		78,070
Shares issued in public offering, net of issuance costs of $5,302		28		94,670			94,698
Shares issued in public offering, net of issuance costs of $5,302 (in Shares)		2,816,900
Issuance of common stock related to employee stock purchase plan				154			154
Issuance of common stock related to employee stock purchase plan, shares (in Shares)		4,767
Cash paid in lieu of fractional shares upon merger with Virginia Heritage				(4)			(4)egbn_PaymentsInLieuOfFractionalShares
Preferred stock dividends					(164)		(164)us-gaap_DividendsPreferredStock
Ending balance at Mar. 31, 2015	$ 71,900	$ 329	$ 946	$ 495,784	$ 169,291	$ 3,280	$ 741,530us-gaap_StockholdersEquity
Ending balance, shares (in Shares) at Mar. 31, 2015	71,900	33,303,467