Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2011	Dec. 31, 2010
Available-for-sale, amortized cost	$ 77,394,287	$ 81,784,262
Equity securities, available-for-sale, cost	14,693,945	9,458,773
Premiums and fees receivable, allowance for doubtful accounts	$ 1,306,000	$ 1,421,000
Common stock, no par value
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	2,121,630	2,282,596
Common stock, shares outstanding	2,121,630	2,282,596
Common stock, held by company's subsidiary	291,676	291,676
Class A Junior Participating Preferred Stock [Member]
Preferred stock, shares authorized	100,000	100,000
Preferred stock, shares issued	0	0