XML 99 R85.htm IDEA: XBRL DOCUMENT v2.4.0.8
Income Taxes - Provision for Federal Income Taxes (Detail) (USD $)
3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]                      
Federal tax based on statutory rate                 $ 3,857,000 $ 4,686,000 $ 2,637,000
State tax based on statutory rate                 10,000 13,000 16,000
(Decrease) increase resulting from:                      
Effect of tax-exempt income                 (294,000) (160,000) (76,000)
Other                 163,000 66,000 58,000
Income tax expense $ 919,000 $ 1,244,000 $ 621,000 $ 952,000 $ 1,116,000 $ 1,506,000 $ 912,000 $ 1,071,000 $ 3,736,138 $ 4,604,930 $ 2,635,411
Effective tax rate                 33.90% 33.40% 34.00%