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Income Taxes (Details 1) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Deferred tax assets (liabilities)    
Depreciation and amortization of property, plant and equipment $ 7,683,378 $ 7,097,828
Impairment of property, plant and equipment 552,946 546,531
Miscellaneous 367,819 289,799
Net operating loss carryover of PRC company 477,790 342,933
Total deferred tax assets 9,081,933 8,277,091
Less: Valuation allowance
Total deferred tax assets, net $ 9,081,933 $ 8,277,091