Consolidated Statements of Changes in Stockholders' Equity (unaudited) (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2011	$ 24,795,045	$ 16,309,983	$ 45,109,268	$ (349,581)	$ 85,864,715
Balance (in shares) at Dec. 31, 2011	4,959,009
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	1,716,508	0	1,716,508
Other comprehensive loss, net of tax	0	0	0	249,407	249,407
Stock compensation expense	0	55,330	0	0	55,330
Cash dividends	0	0	(495,901)	0	(495,901)
Balance at Jun. 30, 2012	24,795,045	16,365,313	46,329,875	(100,174)	87,390,059
Balance (in shares) at Jun. 30, 2012	4,959,009
Balance at Dec. 31, 2012	24,795,045	16,391,845	48,304,609	(191,463)	89,300,036
Balance (in shares) at Dec. 31, 2012	4,959,009				4,959,009
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	1,916,132	0	1,916,132
Other comprehensive loss, net of tax	0	0	0	(8,222,984)	(8,222,984)
Cash dividends	0	0	(495,900)	0	(495,900)
Balance at Jun. 30, 2013	$ 24,795,045	$ 16,391,845	$ 49,724,841	$ (8,414,447)	$ 82,497,284
Balance (in shares) at Jun. 30, 2013	4,959,009				4,959,009