Description of Business and Organization (Details) - USD ($)		Dec. 31, 2018	Dec. 31, 2017
Current assets
Accounts receivable, net		$ 4,327,980	$ 9,092,709
Inventory, net		6,414,305	4,553,559
Total current assets		21,217,009	22,926,343
Equity method investment			9,053,859
Property and equipment, net		21,563,420	33,181,119
Intangible assets, net		3,562,513	5,394,296
Total assets		46,342,942	70,555,617
Liabilities
Current liabilities		10,660,607	9,386,537
Total liabilities		10,905,517	9,386,537
Variable Interest Entity, Primary Beneficiary [Member]
Current assets
Cash		588,633	806,672
Accounts receivable, net		4,236,447	9,059,015
Inventory, net		6,414,305	4,553,559
Other current assets		4,298,439	5,901,119
Total current assets		15,537,824	20,320,365
Equity method investment			9,053,859
Property and equipment, net		21,506,658	33,115,975
Intangible assets, net		2,933,874	5,302,047
Total assets		39,978,356	67,792,246
Liabilities
Current liabilities		7,970,259	7,629,783
Intercompany payables	[1]	13,326,298	13,855,768
Other liabilities, non-current		244,910
Total liabilities		21,541,467	21,485,551
Net assets		$ 18,436,889	$ 46,306,695

[1] Intercompany payables are eliminated in consolidation.