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Federal Home Loan Bank Borrowings - Additional Information (Detail) (USD $)
3 Months Ended
Mar. 31, 2014
Advance
Dec. 31, 2013
Mar. 31, 2014
Federal Home Loan Bank Advances Mature in 2018 [Member]
Mar. 31, 2014
Federal Home Loan Bank Advances Mature in 2023 [Member]
Mar. 31, 2014
Federal Home Loan Bank Advances Mature in 2014 [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]          
Federal Home Loan Bank, the remaining maximum borrowing capacity $ 36,200,000        
Federal Home Loan Bank borrowings 3,492,187 3,515,580 1,968,962 1,523,225  
Number of fixed rate amortizing advances 3        
Subsidiary bank had three fixed rate amortizing advances 3,492,187        
Advances from Federal Home Loan Banks, Maturity Year     2018 2023  
Federal Home Loan Bank Borrowings, interest rate minimum 4.65%        
Federal Home Loan Bank Borrowings, advances interest rate maximum 4.89%        
Federal Home Loan Bank Borrowings, Collateral securing borrowings 3,625,493        
Borrowings outstanding under credit agreement with the federal Home Loan Bank 0 0      
Line of credit facility agreement with the Federal Home Loan Bank, the available maximum credit facility         $ 19,400,000
Line of credit facility expiration date         May 01, 2014