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LOAN PORTFOLIO COMPOSITION - Loans Modified as Troubled Debt Restructurings (Details 7) - Loans Receivable
3 Months Ended 9 Months Ended
Sep. 30, 2015
USD ($)
Loan
Sep. 30, 2014
USD ($)
Loan
Sep. 30, 2015
USD ($)
Loan
Sep. 30, 2014
USD ($)
Loan
Accounts Notes And Loans Receivable [Line Items]        
Troubled debt restructurings, number of modification | Loan   4 1
Troubled debt restructurings, recorded investment   $ 168,466 $ 17,428
Real estate loans | One-to-four family residential        
Accounts Notes And Loans Receivable [Line Items]        
Troubled debt restructurings, number of modification | Loan 1
Troubled debt restructurings, recorded investment $ 100,492
Real estate loans | Commercial real estate        
Accounts Notes And Loans Receivable [Line Items]        
Troubled debt restructurings, number of modification | Loan
Troubled debt restructurings, recorded investment
Real estate loans | Agricultural real estate        
Accounts Notes And Loans Receivable [Line Items]        
Troubled debt restructurings, number of modification | Loan
Troubled debt restructurings, recorded investment
Real estate loans | Home equity        
Accounts Notes And Loans Receivable [Line Items]        
Troubled debt restructurings, number of modification | Loan 1
Troubled debt restructurings, recorded investment $ 1,996
Commercial loans        
Accounts Notes And Loans Receivable [Line Items]        
Troubled debt restructurings, number of modification | Loan
Troubled debt restructurings, recorded investment
Agricultural loans        
Accounts Notes And Loans Receivable [Line Items]        
Troubled debt restructurings, number of modification | Loan
Troubled debt restructurings, recorded investment
Consumer loans        
Accounts Notes And Loans Receivable [Line Items]        
Troubled debt restructurings, number of modification | Loan 2 1
Troubled debt restructurings, recorded investment $ 65,978 $ 17,428