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PROPERTY, PLANT AND EQUIPMENT, NET (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Total	$ 611,616,459	$ 485,466,417
Depreciation of property, plant and equipment	27,487,163	27,576,077	$ 22,620,885
Building [Member]
Property, Plant and Equipment [Line Items]
Cost	322,914,381	313,210,971
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Cost	335,808,916	237,606,822
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Cost	25,953,939	23,035,493
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Cost	582,375	254,630
Depreciable Asset [Member]
Property, Plant and Equipment [Line Items]
Less: Accumulated depreciation	(131,106,712)	(109,191,519)
Total	554,152,899	464,916,397
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Cost	57,463,560	$ 20,550,020
Construction in Progress [Member] | Phase 3B expansion [Member]
Property, Plant and Equipment [Line Items]
Cost	$ 57,500,000

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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