EARNINGS PER SHARE - Trust Preferred Securities (Details)	9 Months Ended
Sep. 30, 2018
EARNINGS PER SHARE
Interest on trust preferred securities	8.50%

Represents interest on trust preferred securities.

No definition available.

Name:	bdge_InterestOnTrustPreferredSecurities
Namespace Prefix:	bdge_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration