Description of Business and Organization (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Current assets
Accounts receivable, net	$ 9,092,709	$ 13,922,371
Inventory, net	4,553,559	2,394,179
Total current assets	22,926,343	26,592,126
Equity method investment	9,053,859	8,610,759
Property and equipment, net	33,181,119	29,878,675
Intangible assets, net	5,394,296	5,283,695
Total assets	70,555,617	70,365,255
Liabilities
Current liabilities	9,386,537	5,053,219
Total liabilities	9,386,537	5,053,219
Variable Interest Entity, Primary Beneficiary [Member]
Current assets
Cash	806,672	1,477,593
Accounts receivable, net	9,059,015	13,922,371
Inventory, net	4,553,559	2,394,179
Other current assets	5,901,119	8,157,961
Total current assets	20,320,365	25,952,104
Equity method investment	9,053,859	8,610,759
Property and equipment, net	33,115,975	29,878,675
Intangible assets, net	5,302,047	5,283,695
Total assets	67,792,346	69,725,233
Liabilities
Current liabilities	7,629,783	4,389,641
Intercompany payables	13,855,768	12,194,352
Total liabilities	21,485,551	16,583,993
Net assets	$ 46,306,795	$ 53,141,240