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Deposits (Details Narrative) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Deposits:    
Overdraft deposits reclassified as loans $ 79,935SGB_OverdraftDepositsReclassified $ 181,384SGB_OverdraftDepositsReclassified
Certificates of deposit amount 1,470,000us-gaap_CertificatesOfDepositAtCarryingValue 3,430,000us-gaap_CertificatesOfDepositAtCarryingValue
Cash fdic insured amount $ 250,000us-gaap_CashFDICInsuredAmount