Financial Instruments with Off-Balance Sheet Risk (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financial Instruments With Off Balance Sheet Risk Disclosure [Line Items]
Commitments to extend credit	$ 142,084us-gaap_UnusedCommitmentsToExtendCredit	$ 127,080us-gaap_UnusedCommitmentsToExtendCredit
Letters of credit	7,155	7,347
Total	$ 149,239shbi_CommitmentsOutstandingTotal	$ 134,427shbi_CommitmentsOutstandingTotal

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant