Property, plant and equipment (Details) (USD $)	3 Months Ended		6 Months Ended						6 Months Ended				6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Mar. 18, 2013 TLC	Jun. 30, 2013 Land and improvements	Jun. 30, 2013 Buildings and improvements	Jun. 30, 2013 Buildings and improvements Minimum	Jun. 30, 2013 Buildings and improvements Maximum	Jun. 30, 2013 Equipment	Dec. 31, 2012 Equipment	Jun. 30, 2013 Equipment Minimum	Jun. 30, 2013 Equipment Maximum	Jun. 30, 2013 Construction in progress
Property, plant and equipment
Useful life of fixed asset									5 years	31 years			3 years	10 years
Depreciation expense	$ 525,660	$ 0	$ 765,237	$ 0
Value of real property acquired						28,469,390
Property, plant and equipment, gross	28,514,419		28,514,419		34,562		5,327,862	22,008,583			1,121,863	34,562			56,111
Less accumulated depreciation	808,752		808,752		33,048
Property, plant and equipment, net	$ 27,705,667		$ 27,705,667		$ 1,514