XML 54 R33.htm IDEA: XBRL DOCUMENT v2.4.0.8
INCOME TAXES (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Income Tax Disclosure [Abstract]          
United States federal corporate tax rate (in hundredths) 35.00% 35.00% 35.00% 35.00%  
Income tax expense (benefit) reconciliation [Abstract]          
Computed expected income tax expense $ 3,347,703 $ 3,762,626 $ 13,307,870 $ 11,597,894  
Increases (decreases) in tax resulting from:          
Tax-exempt interest income (961,018) (1,099,319) (2,897,168) (3,380,796)  
Dividends received deduction (220,365) (211,218) (637,405) (497,663)  
Proration of tax-exempt interest and dividends received deduction 187,734 196,581 540,713 581,769  
Other, net 11,169 (219,558) 24,079 (132,873)  
Total income tax expense 2,365,223 2,429,112 10,338,089 8,168,331  
Provision for uncertain tax positions $ 0   $ 0   $ 0