FIXED ASSETS, NET - Schedule of Fixed Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total fixed assets	$ 69,469,548	$ 66,762,388
Less accumulated depreciation	(24,708,151)	(19,874,896)
Fixed assets, net	44,761,397	46,887,492
Equipment
Property, Plant and Equipment [Line Items]
Total fixed assets	$ 42,879,308	40,404,582
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful life	7 years
Total fixed assets	$ 108,896	108,896
Leasehold improvements
Property, Plant and Equipment [Line Items]
Useful life	15 years
Total fixed assets	$ 2,434,690	2,331,071
Office equipment
Property, Plant and Equipment [Line Items]
Useful life	5 years
Total fixed assets	$ 1,213,865	1,190,509
Vehicles
Property, Plant and Equipment [Line Items]
Useful life	5 years
Total fixed assets	$ 7,114,001	6,899,388
Building
Property, Plant and Equipment [Line Items]
Useful life	20 years
Total fixed assets	$ 274,203	274,203
Construction in progress
Property, Plant and Equipment [Line Items]
Total fixed assets	12,361,034	12,720,188
Land
Property, Plant and Equipment [Line Items]
Total fixed assets	$ 3,083,551	$ 2,833,551
Minimum | Equipment
Property, Plant and Equipment [Line Items]
Useful life	7 years
Maximum | Equipment
Property, Plant and Equipment [Line Items]
Useful life	20 years