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v3.22.1

Derivatives (Narrative) (Details) - Interest Rate Lock Commitments [Member] | 3 Months Ended
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Mar. 31, 2022
Minimum [Member] |
Derivatives, Fair Value [Line Items] |
Period between issuance of loan commitment and closing and sale of loan | 14 days
Maximum [Member] |
Derivatives, Fair Value [Line Items] |
Period between issuance of loan commitment and closing and sale of loan | 120 days

X
- Definition Period of time between issuance of loan commitment and closing and sale of loan. + References No definition available. + Details
Name: | shbi_PeriodBetweenIssuanceOfLoanCommitmentAndClosingAndSaleOfLoan
Namespace Prefix: | shbi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DerivativesFairValueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateLockCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |