Loans and allowance for credit losses (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Nonaccrual Construction Loans Were Classified as Held For Sale	$ 3.5

Nonaccrual construction loans were classified as held for sale.

No definition available.

Name:	shbi_NonaccrualConstructionLoansWereClassifiedAsHeldForSale
Namespace Prefix:	shbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration