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Property, Plant and Equipment (Details) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Property, Plant, and Equipment:    
Totals $ 266,687,858 $ 254,289,650
Less: accumulated depreciation and amortization (77,299,149) (66,599,770)
Property, Plant and Equipment, net 189,388,709 187,689,880
Land use rights [Member]    
Property, Plant, and Equipment:    
Totals 12,479,814 11,755,168
Building and improvements [Member]    
Property, Plant, and Equipment:    
Totals 98,866,703 92,927,111
Machinery and equipment [Member]    
Property, Plant, and Equipment:    
Totals 118,670,578 123,932,336
Vehicles [Member]    
Property, Plant, and Equipment:    
Totals 593,265 590,619
Construction in progress [Member]    
Property, Plant, and Equipment:    
Totals $ 36,077,498 $ 25,084,416