Condensed Financial Information of Parent Company - Condensed Balance Sheets (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
ASSETS
Premises and equipment, net	$ 10,620,542	$ 11,611,688
Other assets	2,900,651	1,753,945
Total assets	331,135,063	334,797,676
Liabilities
Other liabilities	1,533,861	1,578,295
Total liabilities	293,998,564	298,212,705
Total shareholders' equity	37,136,499	36,584,971
Total liabilities and shareholders' equity	331,135,063	334,797,676
Parent Company
ASSETS
Cash and due from banks	3,883,856	9,053,069	63,129
Investments in subsidiaries	32,456,157	31,324,616
Premises and equipment, net	576	1,168
Other assets	1,266,222	274,226
Total assets	37,606,811	40,653,079
Liabilities
Deferred directors' compensation	336,630	249,645
Other liabilities	133,682	3,818,463
Total liabilities	470,312	4,068,108
Total shareholders' equity	37,136,499	36,584,971
Total liabilities and shareholders' equity	$ 37,606,811	$ 40,653,079