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Warrants (Details Narrative)	Dec. 27, 2016 shares
Warrants Details Narrative Abstract
Stock Issued During Period, Shares, Redemption of Warrants	378,495
Number of Securities Called by Warrants	423,977

X

- Definition

Number of new stock issued during the period due to the redemption of warrants.

+ References

No definition available.

+ Details

Name:	egbn_StockIssuedDuringPeriodSharesRedemptionOfWarrants
Namespace Prefix:	egbn_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	egbn_WarrantsDetailsNarrativeAbstract
Namespace Prefix:	egbn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant