Deposits - Summary of Maturity Distribution of Time Certificates of Deposits (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Maturities Of Time Deposits [Abstract]
Due in 2014	$ 25,775,000	$ 37,018,000
Due in 2015	19,308,000	12,928,000
Due in 2016	9,195,000	7,856,000
Due in 2017	5,797,000	5,590,000
Due in 2018	4,294,000	3,579,000
Due in 2019 and thereafter	958,000	116,000
Total	$ 65,326,829	$ 67,086,776