Property and Equipment (Tables)

6 Months Ended

Jun. 30, 2018

Property and Equipment [Abstract]

Summary of property and equipment

	Useful life		June 30,  2018			December 31, 2017
Office equipment and furniture		5 years	$	87,099		$	71,120
Manufacturing equipment		5 - 10 years		33,907,781			34,419,653
Vehicles		5 years		250,498			253,564
Building and building improvements		5 - 20 years		22,174,384			22,556,026
Manufacturing equipment in progress		-		3,595,438			3,657,936
Construction in progress		-		1,625,500			1,652,859
				61,640,700			62,611,158
Less: accumulated depreciation				(30,962,455	)		(29,430,039	)
			$	30,678,245		$	33,181,119