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LOANS - Additional Information (Detail) (USD $)
 1 Months Ended 9 Months Ended
Jan. 31, 2010
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans held for sale   $ 689,000 $ 2,500,000  
Residential mortgage loan   25,300,000 26,800,000  
Percentage of delinquent loan 2.85%      
Delinquent loans least percentage   0.62%    
Impaired loans classified as troubled debt restructured   $ 378,000 $ 627,300 $ 627,300
Maximum time for re-evaluation (in months)   12 months    
Re-evaluation period for real estate   2 years    
Unsecured consumer loans, credit card credits and overdraft lines of credit reach   90 days    
Delinquent period for charging down consumer loans   120 days    
Delinquent period for charging down commercial and agricultural credits   120 days    
Maximum [Member]
        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Leverage position of balance sheet   1.50    
Leverage position of customers   2.00    
Minimum [Member]
        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Repayment period of loan with a reasonable reduction of principal balance   2 years