XML 107 R59.htm IDEA: XBRL DOCUMENT v2.4.1.9
LOANS (Details 5) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Jul. 25, 2014
Dec. 31, 2013
Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items]        
Loans $ 552,038us-gaap_LoansAndLeasesReceivableGrossCarryingAmount $ 217,590us-gaap_LoansAndLeasesReceivableGrossCarryingAmount $ 346,500us-gaap_LoansAndLeasesReceivableGrossCarryingAmount $ 368,344us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 552,038us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ slct_LoanAxis
= slct_TotalLoansMember
     
Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 27,035us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 525,003us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial and Industrial [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 58,217us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
  29,166us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
29,297us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
Commercial and Industrial [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 58,217us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial and Industrial [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 657us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 57,560us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Superior [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     830us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
 
Commercial and Industrial [Member] | Superior [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,241us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial and Industrial [Member] | Superior [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Superior [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,241us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Very Good [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
 
Commercial and Industrial [Member] | Very Good [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,110us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial and Industrial [Member] | Very Good [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Very Good [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,110us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Good [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     5,793us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
 
Commercial and Industrial [Member] | Good [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 5,282us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial and Industrial [Member] | Good [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Good [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 5,282us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Acceptable [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     11,572us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
 
Commercial and Industrial [Member] | Acceptable [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 26,132us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial and Industrial [Member] | Acceptable [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Acceptable [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 26,132us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Acceptable With Care [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     5,307us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
 
Commercial and Industrial [Member] | Acceptable With Care [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 23,404us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial and Industrial [Member] | Acceptable With Care [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 602us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Acceptable With Care [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 22,802us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Special Mention [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     5,122us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
 
Commercial and Industrial [Member] | Special Mention [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 221us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial and Industrial [Member] | Special Mention [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Special Mention [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 221us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Substandard [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     542us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
 
Commercial and Industrial [Member] | Substandard [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 827us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial and Industrial [Member] | Substandard [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 55us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Substandard [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 772us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Doubtful [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
 
Commercial and Industrial [Member] | Doubtful [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial and Industrial [Member] | Doubtful [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Doubtful [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Loss [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
 
Commercial and Industrial [Member] | Loss [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial and Industrial [Member] | Loss [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial and Industrial [Member] | Loss [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= slct_CommercialAndIndustrialOtherMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Construction Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     53,325us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
 
Construction Loans [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 83,593us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Construction Loans [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,463us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Construction Loans [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 82,130us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Construction Loans [Member] | Superior [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     40us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
 
Construction Loans [Member] | Superior [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Construction Loans [Member] | Superior [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Construction Loans [Member] | Superior [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Construction Loans [Member] | Very Good [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
 
Construction Loans [Member] | Very Good [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Construction Loans [Member] | Very Good [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Construction Loans [Member] | Very Good [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Construction Loans [Member] | Good [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     1,133us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
 
Construction Loans [Member] | Good [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 2,705us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Construction Loans [Member] | Good [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Construction Loans [Member] | Good [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 2,705us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Construction Loans [Member] | Acceptable [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     2,838us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
 
Construction Loans [Member] | Acceptable [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 13,579us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Construction Loans [Member] | Acceptable [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Construction Loans [Member] | Acceptable [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 13,579us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Construction Loans [Member] | Acceptable With Care [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     46,597us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
 
Construction Loans [Member] | Acceptable With Care [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 65,717us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Construction Loans [Member] | Acceptable With Care [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,397us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Construction Loans [Member] | Acceptable With Care [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 64,320us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Construction Loans [Member] | Special Mention [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     1,126us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
 
Construction Loans [Member] | Special Mention [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 384us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Construction Loans [Member] | Special Mention [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 66us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Construction Loans [Member] | Special Mention [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 318us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Construction Loans [Member] | Substandard [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     1,591us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
 
Construction Loans [Member] | Substandard [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,208us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Construction Loans [Member] | Substandard [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Construction Loans [Member] | Substandard [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,208us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Construction Loans [Member] | Doubtful [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
 
Construction Loans [Member] | Doubtful [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Construction Loans [Member] | Doubtful [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Construction Loans [Member] | Doubtful [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Construction Loans [Member] | Loss [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
 
Construction Loans [Member] | Loss [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Construction Loans [Member] | Loss [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Construction Loans [Member] | Loss [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ConstructionLoansMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial Real Estate [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 233,630us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
  169,176us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
186,949us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
Commercial Real Estate [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 233,630us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial Real Estate [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 11,903us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 221,727us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Superior [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
 
Commercial Real Estate [Member] | Superior [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial Real Estate [Member] | Superior [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Superior [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Very Good [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
 
Commercial Real Estate [Member] | Very Good [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial Real Estate [Member] | Very Good [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Very Good [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Good [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     19,301us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
 
Commercial Real Estate [Member] | Good [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 15,276us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial Real Estate [Member] | Good [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Good [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 15,276us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Acceptable [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     63,447us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
 
Commercial Real Estate [Member] | Acceptable [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 128,056us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial Real Estate [Member] | Acceptable [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Acceptable [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 128,056us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Acceptable With Care [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     57,768us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
 
Commercial Real Estate [Member] | Acceptable With Care [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 75,554us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial Real Estate [Member] | Acceptable With Care [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 9,368us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Acceptable With Care [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 66,186us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Special Mention [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     21,305us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
 
Commercial Real Estate [Member] | Special Mention [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 8,036us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial Real Estate [Member] | Special Mention [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,973us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Special Mention [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 6,063us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Substandard [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     7,355us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
 
Commercial Real Estate [Member] | Substandard [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 6,708us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial Real Estate [Member] | Substandard [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 562us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Substandard [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 6,146us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Doubtful [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
 
Commercial Real Estate [Member] | Doubtful [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial Real Estate [Member] | Doubtful [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Doubtful [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Loss [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
 
Commercial Real Estate [Member] | Loss [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Commercial Real Estate [Member] | Loss [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Commercial Real Estate [Member] | Loss [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 42,224us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
  19,739us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
19,524us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
Multi Family Residential Real Estate [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 42,224us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Multi Family Residential Real Estate [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 2,724us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 39,500us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Superior [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
 
Multi Family Residential Real Estate [Member] | Superior [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Multi Family Residential Real Estate [Member] | Superior [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Superior [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_SuperiorMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Very Good [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
 
Multi Family Residential Real Estate [Member] | Very Good [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Multi Family Residential Real Estate [Member] | Very Good [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Very Good [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_VeryGoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Good [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     4,203us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
 
Multi Family Residential Real Estate [Member] | Good [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Multi Family Residential Real Estate [Member] | Good [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Good [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_GoodMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Acceptable [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     6,812us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
 
Multi Family Residential Real Estate [Member] | Acceptable [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 31,619us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Multi Family Residential Real Estate [Member] | Acceptable [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Acceptable [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 31,619us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Acceptable With Care [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     6,340us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
 
Multi Family Residential Real Estate [Member] | Acceptable With Care [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 8,374us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Multi Family Residential Real Estate [Member] | Acceptable With Care [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 2,724us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Acceptable With Care [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 5,650us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_AcceptableWithCareMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Special Mention [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     1,380us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
 
Multi Family Residential Real Estate [Member] | Special Mention [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,330us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Multi Family Residential Real Estate [Member] | Special Mention [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Special Mention [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,330us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Substandard [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     1,004us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
 
Multi Family Residential Real Estate [Member] | Substandard [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 901us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Multi Family Residential Real Estate [Member] | Substandard [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Substandard [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 901us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Doubtful [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
 
Multi Family Residential Real Estate [Member] | Doubtful [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Multi Family Residential Real Estate [Member] | Doubtful [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Doubtful [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_DoubtfulMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Loss [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
 
Multi Family Residential Real Estate [Member] | Loss [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Multi Family Residential Real Estate [Member] | Loss [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Multi Family Residential Real Estate [Member] | Loss [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_LossMember
/ us-gaap_FinancialInstrumentAxis
= slct_MultiFamilyResidentialRealEstateMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Loans to Individuals and Overdrafts [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 6,017us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
  8,775us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
8,734us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
Loans to Individuals and Overdrafts [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 6,017us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Loans to Individuals and Overdrafts [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 128us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Loans to Individuals and Overdrafts [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 5,889us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Loans to Individuals and Overdrafts [Member] | Pass [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     7,629us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_PassMember
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
 
Loans to Individuals and Overdrafts [Member] | Pass [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 5,969us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_PassMember
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Loans to Individuals and Overdrafts [Member] | Pass [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 117us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_PassMember
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Loans to Individuals and Overdrafts [Member] | Pass [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 5,852us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_PassMember
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Loans to Individuals and Overdrafts [Member] | Non-Pass [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     1,146us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_NonPassMember
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
 
Loans to Individuals and Overdrafts [Member] | Non-Pass [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 48us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_NonPassMember
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Loans to Individuals and Overdrafts [Member] | Non-Pass [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 11us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_NonPassMember
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Loans to Individuals and Overdrafts [Member] | Non-Pass [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 37us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= slct_NonPassMember
/ us-gaap_FinancialInstrumentAxis
= slct_LoansToIndividualsAndOverdraftsMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Family Residential Real Estate 1 to 4 [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 90,903us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
  35,006us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
41,017us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
Family Residential Real Estate 1 to 4 [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 90,903us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
/ slct_LoanAxis
= slct_TotalLoansMember
     
Family Residential Real Estate 1 to 4 [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 9,972us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Family Residential Real Estate 1 to 4 [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 80,931us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Family Residential Real Estate 1 to 4 [Member] | Pass [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     29,364us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_PassMember
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
 
Family Residential Real Estate 1 to 4 [Member] | Pass [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 82,794us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_PassMember
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
/ slct_LoanAxis
= slct_TotalLoansMember
     
Family Residential Real Estate 1 to 4 [Member] | Pass [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 6,437us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_PassMember
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Family Residential Real Estate 1 to 4 [Member] | Pass [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 76,357us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_PassMember
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Family Residential Real Estate 1 to 4 [Member] | Special Mention [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     1,632us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
 
Family Residential Real Estate 1 to 4 [Member] | Special Mention [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 3,978us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
/ slct_LoanAxis
= slct_TotalLoansMember
     
Family Residential Real Estate 1 to 4 [Member] | Special Mention [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 2,926us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Family Residential Real Estate 1 to 4 [Member] | Special Mention [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,052us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Family Residential Real Estate 1 to 4 [Member] | Substandard [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     4,010us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
 
Family Residential Real Estate 1 to 4 [Member] | Substandard [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 4,131us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
/ slct_LoanAxis
= slct_TotalLoansMember
     
Family Residential Real Estate 1 to 4 [Member] | Substandard [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 609us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Family Residential Real Estate 1 to 4 [Member] | Substandard [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 3,522us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= slct_FamilyResidentialRealEstate1To4Member
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Home Equity Line Of Credit [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 38,093us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
  31,863us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
34,603us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
Home Equity Line Of Credit [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 38,093us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Home Equity Line Of Credit [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 188us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Home Equity Line Of Credit [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 37,905us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Home Equity Line Of Credit [Member] | Pass [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     30,116us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_PassMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
 
Home Equity Line Of Credit [Member] | Pass [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 36,357us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_PassMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Home Equity Line Of Credit [Member] | Pass [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 188us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_PassMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Home Equity Line Of Credit [Member] | Pass [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 36,169us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_PassMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Home Equity Line Of Credit [Member] | Special Mention [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     245us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
 
Home Equity Line Of Credit [Member] | Special Mention [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 695us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Home Equity Line Of Credit [Member] | Special Mention [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Home Equity Line Of Credit [Member] | Special Mention [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 695us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SpecialMentionMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember
     
Home Equity Line Of Credit [Member] | Substandard [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans     1,502us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
 
Home Equity Line Of Credit [Member] | Substandard [Member] | Total Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 1,041us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
/ slct_LoanAxis
= slct_TotalLoansMember
     
Home Equity Line Of Credit [Member] | Substandard [Member] | Purchase Credit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans 0us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
/ slct_LoanAxis
= slct_PurchaseCreditImpairmentLoansMember
     
Home Equity Line Of Credit [Member] | Substandard [Member] | Excluding PurchaseCredit Impairment Loans [Member]        
Financing Receivable, Recorded Investment [Line Items]        
Loans $ 1,041us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_CreditRatingAMBestAxis
= us-gaap_SubstandardMember
/ us-gaap_FinancialInstrumentAxis
= us-gaap_HomeEquityMember
/ slct_LoanAxis
= slct_ExcludingPurchasecreditImpairmentLoansMember