Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2015

Property and Equipment [Abstract]

Components of property and equipment

	Useful life	March 31, 2015			December 31, 2014
Office equipment and furniture	5 years	$	172,312		$	166,734
Manufacturing equipment	5 -10 years		77,239,961			76,870,025
Vehicles	5 years		206,704			205,714
Building and building improvements	5 - 20 years		26,209,151			26,083,624
			103,828,128			103,326,097
Less: accumulated depreciation			(35,943,243	)		(33,697,500	)
		$	67,884,885		$	69,628,597