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LOANS - Additional Information (Detail) (USD $)
 1 Months Ended 6 Months Ended
Jan. 31, 2010
Jun. 30, 2013
Dec. 31, 2012
Jun. 30, 2012
Mar. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans held for sale   $ 565,700 $ 2,500,000    
Residential mortgage loan   26,800,000 26,800,000    
Percentage of delinquent loan 2.85%        
Delinquent loans least percentage         0.64%
Delinquent Loans Past Dues Percentage   1.07%      
Impaired loans classified as troubled debt restructured   $ 2,900 $ 627,300 $ 207,000  
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      
Minimum [Member]
          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Repayment period of loan with a reasonable reduction of principal balance   2 years      
Maximum [Member]
          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Leverage position of balance sheet   1.50      
Leverage position of customers   2.00