Allowance for Loan Losses - Schedule of Loans Which are Individually Evaluated for Impairment, by Class of Loans (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Loans individually evaluated	$ 1,136,000	$ 1,197,000
Loans collectively evaluated	89,834,000	92,205,000
Gross loans	90,969,968	93,401,845
Commercial and Other Loans [Member]
Financing Receivable, Impaired [Line Items]
Loans individually evaluated	25,000	36,000
Loans collectively evaluated	17,226,000	16,689,000
Gross loans	17,251,000	16,725,000
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Loans individually evaluated	892,000	930,000
Loans collectively evaluated	40,603,000	43,177,000
Gross loans	41,495,000	44,107,000
Consumer Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Loans individually evaluated	219,000	231,000
Loans collectively evaluated	28,906,000	29,016,000
Gross loans	29,125,000	29,247,000
Consumer Loans [Member]
Financing Receivable, Impaired [Line Items]
Loans individually evaluated
Loans collectively evaluated	3,236,000	3,456,000
Gross loans	3,236,000	3,456,000
Unearned Discounts [Member]
Financing Receivable, Impaired [Line Items]
Loans individually evaluated
Loans collectively evaluated	(137,000)	(133,000)
Gross loans	$ (137,000)	$ (133,000)