Intangible assets (Tables)

12 Months Ended

Dec. 31, 2012

Intangible assets [Abstract]

Intangible assets

At December 31, 2012 and December 31, 2011, intangible assets and accumulated intangible assets were comprised of the following:

	2012		2011
Intangible assets	$	25,702,909	$	21,429,488
Accumulated amortization		(5,216,117)		(2,809,972	)
Intangible assets, net	$	20,486,792	$	18,619,516

Intangible assets future amortization expense

Amortization of intangible assets for periods subsequent to December 31, 2012 is as follows:

Year Ended	Amortization
December 31,	Expense
2013	$	2,570,291
2014		2,570,291
2015		2,570,291
2016		2,570,291
2017		2,570,291
Thereafter		7,635,337
Total	$	20,486,792