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LOANS - Composition of loans receivable by delinquency status (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Business Activities Loans - Current    
Residential 1-4 family $ 249,563us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
$ 241,567us-gaap_LoansAndLeasesReceivableConsumer
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= SAL_LoansReceivableDelinquencyStatusCurrentMember
Residential 5+ multifamily 5,703us-gaap_LoansAndLeasesReceivableConsumerOther
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= SAL_LoansReceivableDelinquencyStatusCurrentMember
5,467us-gaap_LoansAndLeasesReceivableConsumerOther
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= SAL_LoansReceivableDelinquencyStatusCurrentMember
Construction of residential 1-4 family 3,681us-gaap_LoansAndLeasesReceivableConsumerConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
2,004us-gaap_LoansAndLeasesReceivableConsumerConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Home equity credit 33,737us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
33,488us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Residential real estate 292,684us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
282,526us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Commercial 98,600us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
94,598us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Construction of commercial 14,799us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
18,602us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Commercial real estate 113,399us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
113,200us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Farm land 2,100us-gaap_LoansReceivableCommercialAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
2,119us-gaap_LoansReceivableCommercialAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Vacant land 6,370us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
6,422us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Real estate secured 414,553us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
404,267us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Commercial and industrial 54,358us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
48,478us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Municipal 6,109us-gaap_LoansAndLeasesReceivableCommercialGovernments
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
6,083us-gaap_LoansAndLeasesReceivableCommercialGovernments
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Consumer 4,531us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
4,274us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Loans receivable, gross 479,551us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
463,102us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentMember
Business Activities Loans - Past due 1-29 days    
Residential 1-4 family 2,091us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
7,299us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
Residential 5+ multifamily      
Construction of residential 1-4 family      
Home equity credit 395us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
387us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
Residential real estate 2,486us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
7,686us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
Commercial 2,165us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
2,079us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
Construction of commercial      
Commercial real estate 2,165us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
2,079us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
Farm land      
Vacant land 24us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
51us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
Real estate secured 4,675us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
9,816us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
Commercial and industrial 1,031us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
582us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
Municipal      
Consumer 52us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
47us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
Loans receivable, gross 5,758us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
10,445us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneMember
Business Activities Loans - Past due 30-59 days    
Residential 1-4 family 5,140us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
1,250us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
Residential 5+ multifamily      
Construction of residential 1-4 family      
Home equity credit 98us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
122us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
Residential real estate 5,238us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
1,372us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
Commercial 264us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
602us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
Construction of commercial      
Commercial real estate 264us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
602us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
Farm land    13us-gaap_LoansReceivableCommercialAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
Vacant land    7us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
Real estate secured 5,502us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
1,994us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
Commercial and industrial 65us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
91us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
Municipal      
Consumer 12us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
8us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
Loans receivable, gross 5,579us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
2,093us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoMember
Business Activities Loans - Past due 60-89 days    
Residential 1-4 family 319us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
555us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
Residential 5+ multifamily      
Construction of residential 1-4 family      
Home equity credit 108us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
528us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
Residential real estate 427us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
1,083us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
Commercial 248us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
  
Construction of commercial 15us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
  
Commercial real estate 263us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
  
Farm land 723us-gaap_LoansReceivableCommercialAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
723us-gaap_LoansReceivableCommercialAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
Vacant land 13us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
  
Real estate secured 1,426us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
1,806us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
Commercial and industrial 451us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
17us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
Municipal      
Consumer 3us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
5us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
Loans receivable, gross 1,880us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
1,828us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeMember
Business Activities Loans - Past due 90-179 days    
Residential 1-4 family 292us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
976us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
Residential 5+ multifamily    89us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
Construction of residential 1-4 family      
Home equity credit 66us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
39us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
Residential real estate 358us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
1,104us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
Commercial      
Construction of commercial      
Commercial real estate      
Farm land      
Vacant land 38us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
39us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
Real estate secured 396us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
1,143us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
Commercial and industrial    36us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
Municipal      
Consumer      
Loans receivable, gross 396us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
1,179us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourMember
Business Activities Loans - Past due 180 days and over    
Residential 1-4 family 1,237us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
611us-gaap_LoansAndLeasesReceivableConsumer
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= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
Residential 5+ multifamily 89us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
  
Construction of residential 1-4 family      
Home equity credit 10us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
63us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
Residential real estate 1,336us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
674us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
Commercial 917us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
1,219us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
Construction of commercial      
Commercial real estate 917us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
1,219us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
Farm land 384us-gaap_LoansReceivableCommercialAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
384us-gaap_LoansReceivableCommercialAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
Vacant land 2,823us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
2,823us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
Real estate secured 5,460us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
5,100us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
Commercial and industrial 18us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
  
Municipal      
Consumer      
Loans receivable, gross 5,478us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
5,100us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFiveMember
Business Activities Loans - Past due 30 days and over    
Residential 1-4 family 6,988us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
3,392us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
Residential 5+ multifamily 89us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
89us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
Construction of residential 1-4 family      
Home equity credit 282us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
752us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
Residential real estate 7,359us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
4,233us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
Commercial 1,429us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
1,821us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
Construction of commercial 15us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
  
Commercial real estate 1,444us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
1,821us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
Farm land 1,107us-gaap_LoansReceivableCommercialAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
1,120us-gaap_LoansReceivableCommercialAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
Vacant land 2,874us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
2,869us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
Real estate secured 12,784us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
10,043us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
Commercial and industrial 534us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
144us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
Municipal      
Consumer 15us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
13us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
Loans receivable, gross 13,333us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
10,200us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixMember
Business Activities Loans - Accruing 90 days and over    
Residential 1-4 family      
Residential 5+ multifamily      
Construction of residential 1-4 family      
Home equity credit      
Residential real estate      
Commercial      
Construction of commercial      
Commercial real estate      
Farm land      
Vacant land      
Real estate secured      
Commercial and industrial    17us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyAccrualMember
Municipal      
Consumer      
Loans receivable, gross    17us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyAccrualMember
Business Activities Loans - Non-accrual    
Residential 1-4 family 4,447us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
2,445us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
Residential 5+ multifamily 89us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
89us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
Construction of residential 1-4 family      
Home equity credit 634us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
348us-gaap_LoansAndLeasesReceivableConsumerHomeEquity
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
Residential real estate 5,170us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
2,882us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
Commercial 2,597us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
1,219us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
Construction of commercial      
Commercial real estate 2,597us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
1,219us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
Farm land 383us-gaap_LoansReceivableCommercialAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
384us-gaap_LoansReceivableCommercialAgricultural
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
Vacant land 2,861us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
2,862us-gaap_LoansReceivableCommercialDevelopment
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
Real estate secured 11,011us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
7,347us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
Commercial and industrial 488us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
33us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
Municipal      
Consumer      
Loans receivable, gross 11,499us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
7,380us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualMember
Acquired Loans - Current    
Residential 1-4 family 8,730us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
8,661us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
Residential 5+ multifamily 6,406us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
8,735us-gaap_LoansAndLeasesReceivableConsumerOther
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
Construction of residential 1-4 family      
Home equity credit      
Residential real estate 15,136us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
17,396us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
Commercial 88,380us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
95,695us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
Construction of commercial 8,882us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
3,045us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
Commercial real estate 97,262us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
104,740us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
Farm land      
Vacant land      
Real estate secured 112,398us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
122,136us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
Commercial and industrial 60,120us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
67,665us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
Municipal      
Consumer 105us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
117us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
Loans receivable, gross 172,623us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
189,918us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusCurrentAcquiredMember
Acquired Loans - Past due 1-29 days    
Residential 1-4 family 212us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
  
Residential 5+ multifamily      
Construction of residential 1-4 family      
Home equity credit      
Residential real estate 212us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
  
Commercial 4,399us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
1,109us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
Construction of commercial 746us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
  
Commercial real estate 5,145us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
1,109us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
Farm land      
Vacant land      
Real estate secured 5,357us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
1,109us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
Commercial and industrial 922us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
740us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
Municipal      
Consumer    5us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
Loans receivable, gross 6,279us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
1,854us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodOneAcquiredMember
Acquired Loans - Past due 30-59 days    
Residential 1-4 family      
Residential 5+ multifamily      
Construction of residential 1-4 family      
Home equity credit      
Residential real estate      
Commercial 518us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoAcquiredMember
167us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoAcquiredMember
Construction of commercial      
Commercial real estate 518us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoAcquiredMember
167us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoAcquiredMember
Farm land      
Vacant land      
Real estate secured 518us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoAcquiredMember
167us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoAcquiredMember
Commercial and industrial 238us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoAcquiredMember
89us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoAcquiredMember
Municipal      
Consumer 5us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoAcquiredMember
  
Loans receivable, gross 761us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoAcquiredMember
256us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodTwoAcquiredMember
Acquired Loans - Past due 60-89 days    
Residential 1-4 family      
Residential 5+ multifamily      
Construction of residential 1-4 family      
Home equity credit      
Residential real estate      
Commercial 133us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeAcquiredMember
  
Construction of commercial 285us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeAcquiredMember
  
Commercial real estate 418us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeAcquiredMember
  
Farm land      
Vacant land      
Real estate secured 418us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeAcquiredMember
  
Commercial and industrial    220us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeAcquiredMember
Municipal      
Consumer      
Loans receivable, gross 418us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeAcquiredMember
220us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodThreeAcquiredMember
Acquired Loans - Past due 90-179 days    
Residential 1-4 family      
Residential 5+ multifamily      
Construction of residential 1-4 family      
Home equity credit      
Residential real estate      
Commercial 472us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourAcquiredMember
285us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourAcquiredMember
Construction of commercial      
Commercial real estate 472us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourAcquiredMember
285us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourAcquiredMember
Farm land      
Vacant land      
Real estate secured 472us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourAcquiredMember
285us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourAcquiredMember
Commercial and industrial      
Municipal      
Consumer      
Loans receivable, gross 472us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourAcquiredMember
285us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodFourAcquiredMember
Acquired Loans - Past due 180 days and over    
Residential 1-4 family 571us-gaap_LoansAndLeasesReceivableConsumer
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
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562us-gaap_LoansAndLeasesReceivableConsumer
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Residential 5+ multifamily      
Construction of residential 1-4 family      
Home equity credit      
Residential real estate 571us-gaap_LoansAndLeasesReceivableConsumerRealEstate
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562us-gaap_LoansAndLeasesReceivableConsumerRealEstate
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Commercial 944us-gaap_LoansAndLeasesReceivableCommercial
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643us-gaap_LoansAndLeasesReceivableCommercial
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Construction of commercial      
Commercial real estate 944us-gaap_LoansReceivableCommercialRealEstate
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643us-gaap_LoansReceivableCommercialRealEstate
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Farm land      
Vacant land      
Real estate secured 1,515us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
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1,205us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
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Commercial and industrial      
Municipal      
Consumer      
Loans receivable, gross 1,515us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
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1,205us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
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Acquired Loans - Past due 30 days and over    
Residential 1-4 family 571us-gaap_LoansAndLeasesReceivableConsumer
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562us-gaap_LoansAndLeasesReceivableConsumer
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Residential 5+ multifamily      
Construction of residential 1-4 family      
Home equity credit      
Residential real estate 571us-gaap_LoansAndLeasesReceivableConsumerRealEstate
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562us-gaap_LoansAndLeasesReceivableConsumerRealEstate
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Commercial 2,067us-gaap_LoansAndLeasesReceivableCommercial
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1,095us-gaap_LoansAndLeasesReceivableCommercial
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Construction of commercial 285us-gaap_LoansReceivableCommercialConstruction
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
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Commercial real estate 2,352us-gaap_LoansReceivableCommercialRealEstate
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1,095us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
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Farm land      
Vacant land      
Real estate secured 2,923us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixAcquiredMember
1,657us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
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Commercial and industrial 238us-gaap_LoansReceivableCommercialAndIndustrial
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309us-gaap_LoansReceivableCommercialAndIndustrial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
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Municipal      
Consumer 5us-gaap_LoansAndLeasesReceivableGrossCarryingAmountCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixAcquiredMember
  
Loans receivable, gross 3,166us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixAcquiredMember
1,966us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyStatusPeriodSixAcquiredMember
Acquired Loans - Accruing 90 days and over    
Residential 1-4 family      
Residential 5+ multifamily      
Construction of residential 1-4 family      
Home equity credit      
Residential real estate      
Commercial      
Construction of commercial      
Commercial real estate      
Farm land      
Vacant land      
Real estate secured      
Commercial and industrial      
Municipal      
Consumer      
Loans receivable, gross      
Acquired Loans - Non-accrual    
Residential 1-4 family 571us-gaap_LoansAndLeasesReceivableConsumer
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562us-gaap_LoansAndLeasesReceivableConsumer
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Residential 5+ multifamily      
Construction of residential 1-4 family      
Home equity credit      
Residential real estate 571us-gaap_LoansAndLeasesReceivableConsumerRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualAcquiredMember
562us-gaap_LoansAndLeasesReceivableConsumerRealEstate
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= SAL_LoansReceivableDelinquencyNonAccrualAcquiredMember
Commercial 1,930us-gaap_LoansAndLeasesReceivableCommercial
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= SAL_LoansReceivableDelinquencyNonAccrualAcquiredMember
1,931us-gaap_LoansAndLeasesReceivableCommercial
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualAcquiredMember
Construction of commercial      
Commercial real estate 1,930us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualAcquiredMember
1,931us-gaap_LoansReceivableCommercialRealEstate
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualAcquiredMember
Farm land      
Vacant land      
Real estate secured 2,501us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualAcquiredMember
2,493us-gaap_LoansAndLeasesReceivableCollateralForSecuredBorrowings
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualAcquiredMember
Commercial and industrial      
Municipal      
Consumer      
Loans receivable, gross $ 2,501us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualAcquiredMember
$ 2,493us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis
= SAL_LoansReceivableDelinquencyNonAccrualAcquiredMember