Represents balance of financing receivables that were acquired with deteriorated credit quality.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

+ References

+ Details

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Period Type:	instant

- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

The balance of financing receivables that were collectively evaluated for impairment.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The balance of financing receivables that were individually evaluated for impairment.

+ References

+ Details

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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 210.9-03.7(d))
-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 310
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-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L.1)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=82894903&loc=d3e15032-111544

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

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Balance Type:	na
Period Type:	duration

- Definition

Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

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- Details

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- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=bdge_MultiFamilyPortfolioSegmentMember
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Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=bdge_ResidentialRealEstatePortfolioSegmentMember
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Data Type:	na
Balance Type:
Period Type:

- Details

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Data Type:	na
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Period Type:

- Details

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ALLOWANCE FOR LOAN LOSSES (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Allowance for Loan Losses:
Individually evaluated for impairment	$ 1,961		$ 1
Collectively evaluated for impairment	27,312		25,903
Loans acquired with deteriorated credit quality	0		0
Total Allowance for Loan Losses	29,273	$ 27,544	25,904	$ 24,308	$ 22,708	$ 20,744
Loans:
Individually evaluated for impairment	18,409		3,353
Collectively evaluated for impairment	2,891,493		2,583,074
Loans acquired with deteriorated credit quality	7,361		9,778
Total Loans	2,917,263		2,596,205
Commercial Real Estate \| Mortgage loans
Allowance for Loan Losses:
Collectively evaluated for impairment	10,470		9,225
Total Allowance for Loan Losses	10,470	10,579	9,225	8,460	8,309	7,850
Loans:
Individually evaluated for impairment	8,896		1,539
Collectively evaluated for impairment	1,250,042		1,088,332
Loans acquired with deteriorated credit quality	2,431		1,881
Total Loans	1,261,369		1,091,752
Multi-Family \| Mortgage loans
Allowance for Loan Losses:
Collectively evaluated for impairment	4,840		6,264
Total Allowance for Loan Losses	4,840	4,846	6,264	6,580	5,287	4,208
Loans:
Collectively evaluated for impairment	567,189		514,853
Loans acquired with deteriorated credit quality	2,992		3,293
Total Loans	570,181		518,146
Residential Real Estate \| Mortgage loans
Allowance for Loan Losses:
Collectively evaluated for impairment	1,660		1,495
Total Allowance for Loan Losses	1,660	1,486	1,495	2,031	2,076	2,115
Loans:
Individually evaluated for impairment			784
Collectively evaluated for impairment	399,677		363,230
Loans acquired with deteriorated credit quality	579		870
Total Loans	400,256		364,884
Commercial, Industrial and Agricultural Loans
Allowance for Loan Losses:
Individually evaluated for impairment	1,961		1
Collectively evaluated for impairment	9,463		7,836
Total Allowance for Loan Losses	11,424	9,970	7,837	6,207	5,771	5,405
Loans:
Individually evaluated for impairment	9,513		1,030
Collectively evaluated for impairment	561,521		519,686
Loans acquired with deteriorated credit quality	1,359		3,734
Total Loans	572,393		524,450
Real Estate Construction and Land Loans
Allowance for Loan Losses:
Collectively evaluated for impairment	745		955
Total Allowance for Loan Losses	745	577	955	912	1,131	1,030
Loans:
Collectively evaluated for impairment	93,393		80,605
Total Loans	93,393		80,605
Installment/Consumer Loans
Allowance for Loan Losses:
Collectively evaluated for impairment	134		128
Total Allowance for Loan Losses	134	$ 86	128	$ 118	$ 134	$ 136
Loans:
Collectively evaluated for impairment	19,671		16,368
Total Loans	$ 19,671		$ 16,368