Condensed Consolidated Statements of Retained Earnings (Unaudited) (USD $)	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Retained earnings at beginning of period	$ 23,699,232	$ 23,498,982
Net income	704,543	453,929
Cash dividends declared in the period: $0.24 per share in 2011 and $0.20 per share in 2010	(231,872)	(193,227)
Retained earnings at end of period	$ 24,171,903	$ 23,759,684