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Property and Equipment and Construction in Progress (Details) - USD ($)
 1 Months Ended 3 Months Ended
Jan. 22, 2019
Mar. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property and Equipment and Construction in Progress (Details) [Line Items]        
Net property and equipment   $ 26,628,705 $ 27,044,385  
Property and equipment, description   On January 10, 2020, Zhonghong, Tianyu and Huaxin signed a transfer agreement to transfer all assets under construction and related rights and interests of Xuzhou Tian’an Project to Tianyu for RMB 170 million including VAT ($24.37 million) three installment payments. The 1st installment payment of RMB 50 million ($7.17 million) to be paid within 20 working days after the contract is signed. The 2nd installment payment of RMB 50 million ($7.17 million) is to be paid within 20 working days after completion of the project construction but no later than July 31, 2020. The final installment payment of RMB 70 million ($10.03 million) is to be paid before December 31, 2020.    
ChengaliMember        
Property and Equipment and Construction in Progress (Details) [Line Items]        
Net property and equipment   $ 26,630,000    
ChengaliMember        
Property and Equipment and Construction in Progress (Details) [Line Items]        
Fixed assets cost       $ 35,240,000
TransferredOfSharesDescription On January 22, 2019, Xi’an Zhonghong completed the transfer of Chengli CDQ WHPG project as the partial repayment for the loan of RMB 188,639,400 ($27.54 million) to HYREF (see Note 9). However, because the loan was not deemed repaid due to the buyback right (See Note 9 for detail), the Company kept the Chengli project in its books as fixed assets for accounting purposes      
ChengaliMember        
Property and Equipment and Construction in Progress (Details) [Line Items]        
Net property and equipment     $ 27,040,000