Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
Fixed maturities
Held to Maturity, at Amortized Cost	$ 30,208,111	$ 42,100,196
Available for sale, at fair value	669,808,544	694,509,821
Equity securities, available for sale, at fair value	13,399,532	8,757,258
Investments in affiliates	36,347,441	37,235,530
Short-term investments, at cost, which approximates fair value	38,680,145	23,826,227
Total investments	788,443,773	806,429,032
Cash	22,792,517	19,801,290
Accrued investment income	6,493,342	6,332,085
Premiums receivable	130,495,957	117,196,478
Reinsurance receivable	241,923,788	215,893,322
Deferred policy acquisition costs	44,601,415	40,121,697
Deferred tax asset, net	19,059,816	6,267,536
Prepaid reinsurance premiums	118,456,083	111,156,162
Property and equipment, net	5,979,283	5,953,833
Accounts receivable - securities	1,907,583
Federal income taxes recoverable	1,771,283
Goodwill	5,625,354	5,625,354
Other intangible assets	958,010	958,010
Other	1,137,309	1,154,388
Total assets	1,389,645,513	1,336,889,187
Liabilities
Unpaid losses and loss expenses	496,477,613	458,827,395
Unearned premiums	397,738,722	363,088,103
Accrued expenses	18,100,483	17,140,832
Reinsurance balances payable	14,537,456	13,941,337
Borrowings under lines of credit	64,500,000	52,000,000
Cash dividends declared to stockholders		3,066,532
Subordinated debentures	5,000,000	20,465,000
Federal income taxes payable		583,977
Due to affiliate	52,048	4,579,437
Drafts payable	1,466,446	863,589
Other	2,694,065	2,298,891
Total liabilities	1,000,566,833	936,855,093
Stockholders' Equity
Preferred stock, $.01 par value, authorized 2,000,000 shares; none issued
Additional paid-in capital	182,727,575	176,416,585
Accumulated other comprehensive (loss) income	(1,059,899)	26,394,577
Retained earnings	219,914,119	209,670,214
Treasury stock	(12,773,217)	(12,713,193)
Total stockholders' equity	389,078,680	400,034,094
Total liabilities and stockholders' equity	1,389,645,513	1,336,889,187
Common Class A [Member]
Stockholders' Equity
Common stock value	213,610	209,419
Total stockholders' equity	213,610	209,419
Common Class B [Member]
Stockholders' Equity
Common stock value	56,492	56,492
Total stockholders' equity	$ 56,492	$ 56,492