Subordinated Debt , Fair Value Adjustment.

No definition available.

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

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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

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Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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Balance Type:	credit
Period Type:	duration

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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- Details

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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=shbi_SevernBancorpInc.Member
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Balance Type:
Period Type:

Subordinated Debt (Details) - USD ($) $ in Thousands		9 Months Ended	12 Months Ended
Subordinated Debt (Details) - USD ($) $ in Thousands	Aug. 25, 2020	Sep. 30, 2022	Dec. 31, 2021	Oct. 31, 2021
Debt Instrument [Line Items]
Subordinated Debt		$ 42,995	$ 42,762
Severn Subordinated Debt [Member]
Debt Instrument [Line Items]
Subordinated Debt		24,600
Unamortized issuance costs		357
Subordinated Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 25,000
Interest Rate	5.375%
Payments of Debt Issuance Costs	$ 611
Subordinated Debt [Member] \| SOFR
Debt Instrument [Line Items]
Basis Spread on Variable Rate	526.50%
Subordinated Debt [Member] \| Debentures Due 2035
Debt Instrument [Line Items]
Subordinated Debt		18,400	18,200
Subordinated Debt , Fair Value Adjustment		$ 2,200	$ 2,400
Subordinated Debt [Member] \| Debentures Due 2035 \| Severn Bancorp, Inc.
Debt Instrument [Line Items]
Principal amount				$ 20,600