Description of Business and Organization (Details) - USD ($)		Mar. 31, 2018	Dec. 31, 2017
Current assets
Accounts receivable, net		$ 6,407,157	$ 9,092,709
Inventory, net		5,204,268	4,553,559
Total current assets		27,259,455	22,926,343
Equity method investment		9,297,562	9,053,859
Property and equipment, net		33,341,343	33,181,119
Intangible assets, net		6,833,455	5,394,296
Total assets		76,731,815	70,555,617
Liabilities
Current liabilities		9,054,634	9,386,537
Total liabilities		9,054,634	9,386,537
Variable Interest Entity, Primary Beneficiary [Member]
Current assets
Cash		1,741,148	806,672
Accounts receivable, net		6,352,229	9,059,015
Inventory, net		5,204,268	4,553,559
Other current assets		5,916,719	5,901,119
Total current assets		19,214,364	20,320,365
Equity method investment		9,297,562	9,053,859
Property and equipment, net		33,271,304	33,115,975
Intangible assets, net		5,400,529	5,302,047
Total assets		67,183,759	67,792,246
Liabilities
Current liabilities		7,498,505	7,629,783
Intercompany payables	[1]	14,340,810	13,855,768
Total liabilities		21,839,315	21,485,551
Net assets		$ 45,344,444	$ 46,306,695

[1] Intercompany payables are eliminated in consolidation.