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BORROWINGS, SHORT TERM DEBT (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Short-term Debt [Line Items]    
Amount $ 16,645us-gaap_ShortTermBorrowings $ 8,655us-gaap_ShortTermBorrowings
Rate 0.30%us-gaap_ShortTermDebtWeightedAverageInterestRate 0.10%us-gaap_ShortTermDebtWeightedAverageInterestRate
Line of credit    
Short-term Debt [Line Items]    
Amount 5,021us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LineOfCreditMember		 0us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LineOfCreditMember
Rate 0.75%us-gaap_ShortTermDebtWeightedAverageInterestRate
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LineOfCreditMember		 0.00%us-gaap_ShortTermDebtWeightedAverageInterestRate
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LineOfCreditMember
Repurchase agreements    
Short-term Debt [Line Items]    
Amount $ 11,624us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember		 $ 8,655us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember
Rate 0.10%us-gaap_ShortTermDebtWeightedAverageInterestRate
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember		 0.10%us-gaap_ShortTermDebtWeightedAverageInterestRate
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember