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Property, Plant and Equipment, Net (Details Textual) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Property, Plant and Equipment [Line Items]          
Assets pledged for guarantee of Dongfang Paper capital lease $ 4,313,899   $ 4,313,899   $ 5,782,640
Land use right net values pledged for sale-leaseback financing 5,712,365   5,712,365   $ 5,990,586
Depreciation and amortization 3,758,191 $ 3,462,703 $ 11,547,650 $ 10,873,536  
Land Use Rights [Member]          
Property, Plant and Equipment [Line Items]          
Term of lease     50 years   50 years
Lease expiration year     From 2061 to 2066.   From 2061 to 2066.
Assets pledged for guarantee of Dongfang Paper capital lease 5,129,352   $ 5,129,352    
Value of land use right pledged for bank loan $ 3,262,677   $ 3,262,677