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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Intangible Assets (Details Narrative) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Changes in carrying values of goodwill and intangible assets    
Goodwill from purchases and acquisitions $ 2,358us-gaap_GoodwillFairValueDisclosure
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OtherIntangibleAssetsMember		 $ 2,358us-gaap_GoodwillFairValueDisclosure
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OtherIntangibleAssetsMember
Canaan National Bancorp, Inc. acquisition in 2004    
Goodwill from purchases and acquisitions 7,152us-gaap_GoodwillFairValueDisclosure
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= SAL_OtherIntangibleAssets1Member		 7,152us-gaap_GoodwillFairValueDisclosure
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= SAL_OtherIntangibleAssets1Member
Branch office purchase in New York State in 2007    
Goodwill from purchases and acquisitions 319us-gaap_GoodwillFairValueDisclosure
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= SAL_OtherIntangibleAssets2Member		 319us-gaap_GoodwillFairValueDisclosure
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= SAL_OtherIntangibleAssets2Member
Riverside Bank acquisition in December 2014    
Goodwill from purchases and acquisitions $ 2,723us-gaap_GoodwillFairValueDisclosure
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= SAL_OtherIntangibleAssets3Member