XML 26 R79.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Note 10 - Borrowings (Details) - Short-Term and Long-Term Borrowings (USD $) In Thousands, unless otherwise specified | 16 Months Ended | 37 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2014 | Sep. 02, 2013 | Dec. 31, 2014 | Dec. 31, 2012 | Dec. 31, 2013
At Year-End: |  |  |  |  |
Subordinated notes | $ 9,300 us-gaap_SubordinatedDebt |  | $ 9,300 us-gaap_SubordinatedDebt |  |
Subordinated notes, rate | 8.50%us-gaap_SubordinatedBorrowingInterestRate | 10.00%us-gaap_SubordinatedBorrowingInterestRate |  |  |
Current Portion [Member] | Average Daily Balance [Member] |  |  |  |  |
At Year-End: |  |  |  |  |
Average daily balance, federal home loan bank |  |  | 7,288 us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember | 503 us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember |
Average daily balance, federal home loan bank, rate |  |  | 0.42%us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember | 0.41%us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember |
Current Portion [Member] | Month End Balance [Member] | Maximum [Member] |  |  |  |  |
At Year-End: |  |  |  |  |
Maximum month-end balance, federal home loan bank | 100,000 us-gaap_FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  | 100,000 us-gaap_FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 10,000 us-gaap_FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
Maximum month-end balance, federal home loan bank, rate | 0.38%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  | 0.38%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 2.98%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
At Year-End: |  |  |  |  |
Federal Home Loan Bank | 0.38%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  | 0.38%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 2.98%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_FairValueByLiabilityClassAxis = egbn_CurrentPortionMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
Year End [Member] |  |  |  |  |
At Year-End: |  |  |  |  |
Customer repurchase agreements and federal funds purchased | 61,120 us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure / us-gaap_DebtInstrumentAxis = egbn_YearEndMember |  | 61,120 us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 101,338 us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 80,471 us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure / us-gaap_DebtInstrumentAxis = egbn_YearEndMember
Customer repurchase agreements and federal funds purchased, rate | 0.25%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember |  | 0.25%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 0.31%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 0.28%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember
Maximum month-end balance, federal home loan bank, rate | 2.62%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember |  | 2.62%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 2.43%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 2.46%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember
Total | 61,120 us-gaap_ShortTermBorrowings / us-gaap_DebtInstrumentAxis = egbn_YearEndMember |  | 61,120 us-gaap_ShortTermBorrowings / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 101,338 us-gaap_ShortTermBorrowings / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 80,471 us-gaap_ShortTermBorrowings / us-gaap_DebtInstrumentAxis = egbn_YearEndMember
At Year-End: |  |  |  |  |
Federal Home Loan Bank | 40,000 us-gaap_FederalHomeLoanBankStock / us-gaap_DebtInstrumentAxis = egbn_YearEndMember |  | 40,000 us-gaap_FederalHomeLoanBankStock / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 30,000 us-gaap_FederalHomeLoanBankStock / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 30,000 us-gaap_FederalHomeLoanBankStock / us-gaap_DebtInstrumentAxis = egbn_YearEndMember
Federal Home Loan Bank | 2.62%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember |  | 2.62%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 2.43%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 2.46%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember
Subordinated notes | 79,300 us-gaap_SubordinatedDebt / us-gaap_DebtInstrumentAxis = egbn_YearEndMember |  | 79,300 us-gaap_SubordinatedDebt / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 9,300 us-gaap_SubordinatedDebt / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 9,300 us-gaap_SubordinatedDebt / us-gaap_DebtInstrumentAxis = egbn_YearEndMember
Subordinated notes, rate |  |  | 6.40%us-gaap_SubordinatedBorrowingInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 10.00%us-gaap_SubordinatedBorrowingInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember | 8.50%us-gaap_SubordinatedBorrowingInterestRate / us-gaap_DebtInstrumentAxis = egbn_YearEndMember
Average Daily Balance [Member] |  |  |  |  |
At Year-End: |  |  |  |  |
Customer repurchase agreements and federal funds purchased | 63,490 us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember |  | 63,490 us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember | 96,141 us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember | 94,566 us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember
Customer repurchase agreements and federal funds purchased, rate | 0.23%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember |  | 0.23%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember | 0.34%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember | 0.27%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember
Average daily balance, federal home loan bank |  |  | 39,205 us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember | 37,404 us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember | 30,000 us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember
Average daily balance, federal home loan bank, rate |  |  | 2.00%us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember | 2.90%us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember | 2.46%us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember
At Year-End: |  |  |  |  |
Subordinated notes | 37,875 us-gaap_SubordinatedDebt / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember |  | 37,875 us-gaap_SubordinatedDebt / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember | 9,300 us-gaap_SubordinatedDebt / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember | 9,300 us-gaap_SubordinatedDebt / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember
Subordinated notes, rate |  |  | 6.59%us-gaap_SubordinatedBorrowingInterestRate / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember | 10.00%us-gaap_SubordinatedBorrowingInterestRate / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember | 9.64%us-gaap_SubordinatedBorrowingInterestRate / us-gaap_DebtInstrumentAxis = egbn_AverageDailyBalanceMember
Month End Balance [Member] | Maximum [Member] |  |  |  |  |
At Year-End: |  |  |  |  |
Customer repurchase agreements and federal funds purchased | 80,471 us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  | 80,471 us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 111,580 us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 106,975 us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Customer repurchase agreements and federal funds purchased, rate | 0.28%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  | 0.28%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 0.34%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 0.23%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Maximum month-end balance, federal home loan bank | 122,500 us-gaap_FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  | 122,500 us-gaap_FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 40,000 us-gaap_FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 30,000 us-gaap_FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Maximum month-end balance, federal home loan bank, rate | 0.68%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  | 0.68%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 2.96%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 2.46%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember
At Year-End: |  |  |  |  |
Federal Home Loan Bank | 0.68%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  | 0.68%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 2.96%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 2.46%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Subordinated notes | $ 79,300 us-gaap_SubordinatedDebt / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  | $ 79,300 us-gaap_SubordinatedDebt / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | $ 9,300 us-gaap_SubordinatedDebt / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | $ 9,300 us-gaap_SubordinatedDebt / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Subordinated notes, rate |  |  | 6.52%us-gaap_SubordinatedBorrowingInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 10.00%us-gaap_SubordinatedBorrowingInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 10.00%us-gaap_SubordinatedBorrowingInterestRate / us-gaap_DebtInstrumentAxis = egbn_MonthEndBalanceMember / us-gaap_RangeAxis = us-gaap_MaximumMember

X
- Details
Name: | egbn_AtYearEndAbstract
Namespace Prefix: | egbn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | egbn_AtYearEndAbstract0
Namespace Prefix: | egbn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Interest rate on the amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph m -Subparagraph 1 -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(i)(A)(ii)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value portion of federal funds sold and securities borrowed or purchased under agreements to resell. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The calculated average balance outstanding for the year for all Federal Home Loan Bank advances as of the Balance Sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The calculated weighted average interest rate for Federal Home Loan Bank advances for the period ended as of the Balance Sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum balance outstanding at any month end during the period as of the Balance Sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Discloses the single interest rate [if] applicable to the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
Name: | us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 325 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6478792&loc=d3e63345-112809 + Details
Name: | us-gaap_FederalHomeLoanBankStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),16(a)(1)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Subparagraph a(1) -Article 7 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13 -Subparagraph 2, 3 -Article 9 + Details
Name: | us-gaap_ShortTermBorrowings
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Stated interest rate of the subordinated debt. + References No definition available. + Details
Name: | us-gaap_SubordinatedBorrowingInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 10 -Section F Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Article 5 -Subsection 19, 20, 22 + Details
Name: | us-gaap_SubordinatedDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=egbn_AverageDailyBalanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=egbn_MonthEndBalanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=egbn_YearEndMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=egbn_CurrentPortionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |