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Summary of Significant Accounting Policies (Details Textual)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jan. 04, 2019
USD ($)
Jan. 04, 2019
CNY (¥)
Dec. 29, 2018
USD ($)
Dec. 29, 2018
CNY (¥)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2018
CNY (¥)
Summary of Significant Accounting Policies (Textual)                    
Accounts receivable         $ 43,670,925   $ 43,670,925   $ 11,755,251  
Accounts receivable, description             The Company had gross accounts receivable of $49.67 million; of which, $34.93 million was for transferring the ownership of Huayu and Shenqiu Phase I and II systems to Mr. Bai which is waiting for completion of transfer Mr. Bai's all the equity shares of his wholly owned company, Xi'an Hanneng, to HYREF; $11.31 million was from the sales of CDQ and a CDQ WHPG system to Zhongtai, and $3.43 million accounts receivable of Erdos TCH for the electricity sold. As of December 31, 2018, the Company had accounts receivable of $15,252,162 (from the sales of CDQ and a CDQ WHPG system to Zhongtai, and accounts receivable of Erdos TCH for electricity sold).      
Interest receivable on sales type leases         5,173,531   $ 5,173,531   9,336,140  
Asset impairment loss             28,429,789    
Bad debt allowance for net investment receivable         24,082,622   24,082,622   29,276,658  
Additional bad debt         2,630,000   $ 2,630,000      
Description of corporate income tax rate             The provisions of the Tax Act that may have significant impact on the Company, including the permanent reduction of the corporate income tax rate from 35% to 21% effective for tax years including or commencing January 1, 2018.      
U.S. corporate income taxes               21.00%    
U.S. corporate income taxes for prior               35.00%    
Bad debt allowance             $ 3,496,911      
Ownership percentage, description             1) Erdos TCH Energy Saving Development Co., Ltd ("Erdos TCH"), 100% owned by Xi'an TCH (See note 1), 2) Zhonghong, 90% owned by Xi'an TCH and 10% owned by Shanghai TCH, and 3) Zhongxun, 100% owned by Xi'an TCH.      
Shares purchasable under warrants and option         4,067,641 $ 9,000 $ 4,067,641 $ 9,000    
Xuzhou Tian’an [Member]                    
Summary of Significant Accounting Policies (Textual)                    
Asset impairment loss                 13,512,592  
Fair value of transfered amount                 25,580,000  
Xuzhou Tian’an [Member] | RMB [Member]                    
Summary of Significant Accounting Policies (Textual)                    
Fair value of transfered amount | ¥                   ¥ 172,250,000
Shenqiu systems [Member]                    
Summary of Significant Accounting Policies (Textual)                    
Bad debt allowance for net investment receivable         7,274,872   7,274,872      
Pucheng systems [Member]                    
Summary of Significant Accounting Policies (Textual)                    
Bad debt allowance for net investment receivable         $ 22,017,360   22,017,360      
Xuzhou Huayu [Member]                    
Summary of Significant Accounting Policies (Textual)                    
Asset impairment loss                 6,528,120  
Fair value of transfered amount $ 17,520,000   $ 27,540,000              
Xuzhou Huayu [Member] | RMB [Member]                    
Summary of Significant Accounting Policies (Textual)                    
Fair value of transfered amount | ¥   ¥ 120,000,000   ¥ 188,639,400            
Chengli [Member]                    
Summary of Significant Accounting Policies (Textual)                    
Asset impairment loss                 $ 8,124,968  
Zhongtai [Member]                    
Summary of Significant Accounting Policies (Textual)                    
Bad debt allowance             5,655,389      
Erdos TCH [Member]                    
Summary of Significant Accounting Policies (Textual)                    
Bad debt allowance             $ 342,686