Fair Value Measurements - Summary of Company's Assets Measured at Fair Value on a Nonrecurring Basis (Detail) (Recorded Balance [Member], USD $)	Jun. 30, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans, net	$ 2,939,932	$ 3,308,074
Other real estate owned, net	3,351,454	3,151,346
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans, net
Other real estate owned, net
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans, net
Other real estate owned, net
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired Loans, net	2,939,932	3,308,074
Other real estate owned, net	$ 3,351,454	$ 3,151,346