Loans and Allowance for Credit Losses (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of contracts	2	0
Recorded investment	$ 279	$ 0
Related allowance	0	0
Troubled Debt Restructurings That Subsequently Defaulted [Member] \| Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of contracts	0	0
Recorded investment	0	0
Related allowance	0	0
Troubled Debt Restructurings That Subsequently Defaulted [Member] \| Residential real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of contracts	0	0
Recorded investment	0	0
Related allowance	0	0
Troubled Debt Restructurings That Subsequently Defaulted [Member] \| Commercial real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of contracts	2	0
Recorded investment	279	0
Related allowance	0	0
Troubled Debt Restructurings That Subsequently Defaulted [Member] \| Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of contracts	0	0
Recorded investment	0	0
Related allowance	0	0
Troubled Debt Restructurings That Subsequently Defaulted [Member] \| Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of contracts	0	0
Recorded investment	0	0
Related allowance	$ 0	$ 0

Amount of allowance related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

No definition available.

+ Details

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Namespace Prefix:	shbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:	us-gaap_
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Period Type:	duration

- Definition

Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 34

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953682-111524

+ Details

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- Definition

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

+ References

+ Details

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

- Details

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