Allowance for Loan Losses - Loan Receivables Evaluated for Impairment Individually and Collectively by Segment (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Ending Balance:
Individually evaluated for impairment	$ 6,655,713	$ 7,581,680
Collectively evaluated for impairment	243,675,663	230,555,815
Total Gross Loans	250,331,376	238,137,495
Mortgage Loans on Real Estate
Ending Balance:
Individually evaluated for impairment	6,305,880	7,507,702
Collectively evaluated for impairment	214,101,237	203,451,836
Total Gross Loans	220,407,117	210,959,538
Commercial and Industrial loans
Ending Balance:
Individually evaluated for impairment	310,929
Collectively evaluated for impairment	23,627,672	20,524,547
Total Gross Loans	23,938,601	20,524,547
Consumer Loans
Ending Balance:
Individually evaluated for impairment	38,904	73,978
Collectively evaluated for impairment	5,946,754	6,579,432
Total Gross Loans	$ 5,985,658	$ 6,653,410