(6) Income Taxes (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Income Taxes Tables
Balance at January 1,	$ 5,062,124	$ 5,169,348
Increases in tax positions for prior years
Decreases in tax positions for prior years		(128,831)
Increase in tax positions for current year	3,572	21,607
Balance at December 31,	$ 5,065,696	$ 5,062,124