XML 108 R64.htm IDEA: XBRL DOCUMENT v2.4.1.9
LOANS AND ALLOWANCE FOR CREDIT LOSSES (Details 2) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Impaired Nonaccrual Loans [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance $ 20,145us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 $ 21,554us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Recorded investment with no allowance 10,175us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 12,422us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Recorded investment with an allowance 3,292us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 2,204us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Related allowance 903us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 716us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Average recorded investment 15,466us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 26,006us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Interest income recognized 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Impaired Nonaccrual Loans [Member] | Construction Loans [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 9,277us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 6,787us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Recorded investment with no allowance 6,045us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 3,709us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Recorded investment with an allowance 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 240us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Related allowance 0us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 203us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Average recorded investment 7,739us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 7,270us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Interest income recognized 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Impaired Nonaccrual Loans [Member] | Residential Real Estate [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 4,664us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 7,692us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Recorded investment with no allowance 1,053us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 3,862us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Recorded investment with an allowance 2,982us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 1,304us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Related allowance 799us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 225us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Average recorded investment 3,322us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 10,240us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Interest income recognized 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Impaired Nonaccrual Loans [Member] | Commercial Real Estate [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 4,703us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 5,218us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Recorded investment with no allowance 2,842us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 4,261us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Recorded investment with an allowance 280us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 410us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Related allowance 100us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 38us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Average recorded investment 3,889us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 7,829us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Interest income recognized 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Impaired Nonaccrual Loans [Member] | Commercial Loan [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 1,372us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 1,801us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Recorded investment with no allowance 136us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 547us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Recorded investment with an allowance 5us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 245us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Related allowance 1us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 245us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Average recorded investment 437us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 619us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Interest income recognized 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Impaired Nonaccrual Loans [Member] | Consumer Loan [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 129us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 56us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Recorded investment with no allowance 99us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 43us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Recorded investment with an allowance 25us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 5us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Related allowance 3us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 5us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Average recorded investment 79us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 48us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Interest income recognized 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedNonaccrualLoansMember
Impaired Accruing TDRs [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 16,674us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 26,088us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Recorded investment with no allowance 8,685us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 23,805us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Recorded investment with an allowance 7,989us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 2,283us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Related allowance 370us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 67us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Average recorded investment 24,495us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 38,919us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Interest income recognized 696us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Impaired Accruing TDRs [Member] | Construction Loans [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 4,022us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 1,620us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Recorded investment with no allowance 3,196us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 1,527us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Recorded investment with an allowance 826us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 93us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Related allowance 41us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 1us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Average recorded investment 2,743us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 14,405us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Interest income recognized 68us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Impaired Accruing TDRs [Member] | Residential Real Estate [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 6,368us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 14,582us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Recorded investment with no allowance 668us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 13,177us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Recorded investment with an allowance 5,700us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 1,405us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Related allowance 300us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 60us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Average recorded investment 15,123us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 11,101us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Interest income recognized 372us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Impaired Accruing TDRs [Member] | Commercial Real Estate [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 6,237us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 9,791us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Recorded investment with no allowance 4,774us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 9,006us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Recorded investment with an allowance 1,463us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 785us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Related allowance 29us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 6us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Average recorded investment 6,574us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 13,308us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Interest income recognized 254us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Impaired Accruing TDRs [Member] | Commercial Loan [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 47us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 95us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Recorded investment with no allowance 47us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 95us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Recorded investment with an allowance 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Related allowance 0us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 0us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Average recorded investment 55us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 105us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Interest income recognized 2us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Impaired Accruing TDRs [Member] | Consumer Loan [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 0us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 0us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Recorded investment with no allowance 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 0us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Recorded investment with an allowance 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 0us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Related allowance 0us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 0us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Average recorded investment 0us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 0us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Interest income recognized 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpairedAccruingRestructuredLoansMember
Total Impired Loans [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 36,819us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 47,642us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Recorded investment with no allowance 18,860us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 36,227us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Recorded investment with an allowance 11,281us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 4,487us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Related allowance 1,273us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 783us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Average recorded investment 39,961us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 64,925us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Interest income recognized 696us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Total Impired Loans [Member] | Construction Loans [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 13,299us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 8,407us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Recorded investment with no allowance 9,241us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 5,236us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Recorded investment with an allowance 826us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 333us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Related allowance 41us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 204us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Average recorded investment 10,482us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 21,675us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Interest income recognized 68us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
Total Impired Loans [Member] | Residential Real Estate [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 11,032us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 22,274us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Recorded investment with no allowance 1,721us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 17,039us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Recorded investment with an allowance 8,682us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 2,709us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Related allowance 1,099us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 285us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Average recorded investment 18,445us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 21,341us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Interest income recognized 372us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_ResidentialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Total Impired Loans [Member] | Commercial Real Estate [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 10,940us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 15,009us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Recorded investment with no allowance 7,616us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 13,267us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Recorded investment with an allowance 1,743us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 1,195us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Related allowance 129us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 44us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Average recorded investment 10,463us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 21,137us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Interest income recognized 254us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis
= us-gaap_CommercialRealEstateMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Total Impired Loans [Member] | Commercial Loan [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 1,419us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 1,896us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Recorded investment with no allowance 183us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 642us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Recorded investment with an allowance 5us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 245us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Related allowance 1us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 245us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Average recorded investment 492us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 724us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Interest income recognized 2us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Total Impired Loans [Member] | Consumer Loan [Member]    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Unpaid principal balance 129us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 56us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Recorded investment with no allowance 99us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 43us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Recorded investment with an allowance 25us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 5us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Related allowance 3us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 5us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Average recorded investment 79us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 48us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember
Interest income recognized $ 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember		 $ 0us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConsumerLoanMember
/ shbi_ImpairedNonaccrualLoansAxis
= shbi_ImpiredAdverselyRatedLoansMember