EARNINGS PER SHARE (Detail Textuals) - Convertible trust preferred securities - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding amount of securities included in computation of diluted earnings per share	$ 15.8		$ 15.8
Outstanding amount of securities not included in computation of diluted earnings per share		$ 16.0		$ 16.0

Value of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

No definition available.

Name:	bdge_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareOutstandingAmount
Namespace Prefix:	bdge_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration