Consolidated Statements Of Changes In Stockholders' Equity (USD $)	Common Stock [Member]	Paid In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss), Net Of Tax [Member]	Total
Balance at Dec. 31, 2010	$ 6,509,267	$ 2,032,516	$ (6,425,546)	$ 31,575,875	$ (43,094)	$ 33,649,018
Balance, treasury stock, shares at Dec. 31, 2010			737,119
Balance, shares outstanding at Dec. 31, 2010	16,536,657
Balance, shares issued at Dec. 31, 2010	17,273,776
Redemption of stock, shares	(92,848)		92,848
Redemption of stock			(846,290)			(846,290)
Unrealized gains on securities, net of taxes					16,918	16,918
Net income				1,925,771		1,925,771
Balance at Mar. 31, 2011	6,509,267	2,032,516	(7,271,836)	33,501,646	(26,176)	34,745,417
Balance, treasury stock, shares at Mar. 31, 2011			829,967
Balance, shares issued at Mar. 31, 2011	17,273,776					17,273,776
Balance, shares outstanding at Mar. 31, 2011	16,443,809					16,443,809
Balance at Dec. 31, 2010	6,509,267	2,032,516	(6,425,546)	31,575,875	(43,094)	33,649,018
Balance, treasury stock, shares at Dec. 31, 2010			737,119
Balance, shares outstanding at Dec. 31, 2010	16,536,657
Balance, shares issued at Dec. 31, 2010	17,273,776
Redemption of stock, shares	(127,340)		127,340
Redemption of stock			(1,181,428)			(1,181,428)
Unrealized gains on securities, net of taxes					34,146	34,146
Net income				2,855,421		2,855,421
Balance at Dec. 31, 2011	6,509,267	2,032,516	(7,606,974)	34,431,296	(8,948)	35,357,157
Balance, treasury stock, shares at Dec. 31, 2011			864,459
Balance, shares issued at Dec. 31, 2011	17,273,776					17,273,776
Balance, shares outstanding at Dec. 31, 2011	16,409,317					16,409,317
Redemption of stock, shares	(18,900)		18,900
Redemption of stock			(176,606)			(176,606)
Unrealized gains on securities, net of taxes					39,162	39,162
Net income				1,094,989		1,094,989
Balance at Mar. 31, 2012	$ 6,509,267	$ 2,032,516	$ (7,783,580)	$ 35,526,285	$ 30,214	$ 36,314,702
Balance, treasury stock, shares at Mar. 31, 2012			883,359
Balance, shares issued at Mar. 31, 2012	17,273,776					17,273,776
Balance, shares outstanding at Mar. 31, 2012	16,390,417					16,390,417