Consolidated Statements of Comprehensive Income (unaudited) (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Other comprehensive income, net of tax
Unrealized losses arising during the period, taxes	$ 22,367	$ 86,409	$ 12,887	$ 49,817