Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2013

Supplemental Cash Flow Information [Abstract]

Summary Of Cash Paid For Interest And Income Taxes

	For the Three Months Ended
	March 31,
	2013		2012
Interest	$	36,326	$	64,172
Income taxes	$	1,395,093	$	625,055