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Loans Payable (Details Textual) |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |
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Aug. 06, 2017 USD ($) | Aug. 05, 2016 USD ($) | Aug. 05, 2016 CNY (¥) | Feb. 15, 2019 | Dec. 29, 2018 USD ($) | Dec. 29, 2018 CNY (¥) | Jul. 31, 2013 USD ($) | Jun. 30, 2019 USD ($) | Dec. 31, 2018 USD ($) | Jan. 22, 2019 USD ($) | Jan. 22, 2019 CNY (¥) | Jan. 04, 2019 USD ($) | Jan. 04, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥) | Dec. 29, 2018 CNY (¥) | Dec. 02, 2018 | Aug. 06, 2017 CNY (¥) | Aug. 06, 2016 USD ($) | Jul. 31, 2013 CNY (¥)
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of service fee on loan |  |  |  |  |  |  | 0.10% |  |  |  |  |  |  |  |  |  |  |  |
Long term debt maturities repayments of principal in fourth year | $ 100,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term debt maturities repayments of principal in fifth year | 12,520,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  | 9.00% |  |  |  |  | 9.00% |  |  |  |  |
Remaining debt amount | 280,000,000 | $ 34,680,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of loan, description |  |  |  |  |  |  |  | The term of this loan is for 60 months from July 31, 2013 to July 30, 2018. |  |  |  |  |  |  |  |  |  |  |
Interest payable for loan |  |  |  |  |  |  |  |  | $ 17,470,000 |  |  |  |  |  |  |  |  |  |
Description of remaining loan balance |  |  |  |  |  |  |  | The Company negotiated with the lender again to further extend the remaining loan balance of RMB 230 million ($34.68 million), RMB 100 million ($16.27 million), and RMB 77 million ($12.52 million) (which included investment from Xi'an TCH of RMB 75 million and was netted off with the entrusted loan payable of the HYREF Fund in the balance sheet). The lender has tentatively agreed to extend the remaining loan balance until August 2019 with an adjusted annual interest rate of 9%, subject to the final approval from its headquarters. |  |  |  |  |  |  |  |  |  |  |
Buy bank agreement, description |  |  |  |  | The buy-back price for the Xi'an Hanneng's equity will be the higher of (i) the market price of the equity shares at the time of buy-back; or (ii) the original transfer price of the equity shares plus bank interest. HYREF may request that the Buyers buy back the equity shares of Xi'an Hanneng and/or the CDQ WHPG station if one of the following conditions is met: (i) HYREF holds the equity shares of Xi'an Hanneng until December 31, 2021; (ii) Xi'an Huaxin New Energy Co., Ltd., is delisted from The National Equities Exchange And Quotations Co., Ltd., a Chinese over-the-counter trading system (the "NEEQ"); (iii) Xi'an Huaxin New Energy, or any of the Buyers or its affiliates has a credit problem, including not being able to issue an auditor report or standard auditor report or any control person or executive of the Buyers is involved in crimes and is under prosecution or has other material credit problems, to HYREF's reasonable belief; (iv) if Xi'an Zhonghong fails to timely make repayment on principal or interest of the loan agreement, its supplemental agreement or extension agreement; (v) the Buyers or any party to the Debt Repayment Agreement materially breaches the Debt Repayment Agreement or its related transaction documents, including but not limited to the Share Transfer Agreement, the Pledged Assets Transfer Agreement, the Entrusted Loan Agreement and their guarantee agreements and supplemental agreements. | The buy-back price for the Xi'an Hanneng's equity will be the higher of (i) the market price of the equity shares at the time of buy-back; or (ii) the original transfer price of the equity shares plus bank interest. HYREF may request that the Buyers buy back the equity shares of Xi'an Hanneng and/or the CDQ WHPG station if one of the following conditions is met: (i) HYREF holds the equity shares of Xi'an Hanneng until December 31, 2021; (ii) Xi'an Huaxin New Energy Co., Ltd., is delisted from The National Equities Exchange And Quotations Co., Ltd., a Chinese over-the-counter trading system (the "NEEQ"); (iii) Xi'an Huaxin New Energy, or any of the Buyers or its affiliates has a credit problem, including not being able to issue an auditor report or standard auditor report or any control person or executive of the Buyers is involved in crimes and is under prosecution or has other material credit problems, to HYREF's reasonable belief; (iv) if Xi'an Zhonghong fails to timely make repayment on principal or interest of the loan agreement, its supplemental agreement or extension agreement; (v) the Buyers or any party to the Debt Repayment Agreement materially breaches the Debt Repayment Agreement or its related transaction documents, including but not limited to the Share Transfer Agreement, the Pledged Assets Transfer Agreement, the Entrusted Loan Agreement and their guarantee agreements and supplemental agreements. |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding loan balance |  |  |  |  |  |  |  | $ 48,293,016 |  |  |  |  |  |  |  |  |  |  |
Mr. Chonggong Bai [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of remaining loan balance |  |  |  |  |  |  |  | The process of transferring all the equity shares of his wholly owned company, Xi'an Hanneng, to HYREF as repayment for the loan; Xi'an Hanneng is a holding company and was supposed to own 47,150,000 shares of Xi'an Huaxin New Energy Co., Ltd. ("Huaxin"), so that HYREF will indirectly receive and own such shares of Xi'an Huaxin as the repayment for the loan of Zhonghong. As of June 30, 2019, Xi'an Hanneng already owns 29,948,000 shares of Huaxin, and is in the process of obtaining the remaining 17,202,000 shares; however, Huaxin stock is halted trading by NEEQ until its 2018 annual report is filed; as of the date of this report, the partners of HYREF and the Company orally agreed to extend the due date of the equity share transfer of Xi'an Hanneng for another few months when Xi'an Hanneng obtains the remaining 17,202,000 shares of Huaxin. Since the debt settlement agreement is not fully implemented, the loan was deemed unpaid at June 30, 2019. |  |  |  |  |  |  |  |  |  |  |
Shenqiu Phase I & II project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable |  |  |  |  |  |  |  |  |  |  |  | $ 18,550,000 |  |  |  |  |  |  |
Debt amount paid |  |  |  |  |  |  |  |  |  |  |  | 36,070,000 |  |  |  |  |  |  |
Xuzhou Huayu project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable |  |  |  |  |  |  |  |  |  |  |  | 17,520,000 |  |  |  |  |  |  |
Debt amount paid |  |  |  |  |  |  |  |  |  |  |  | $ 36,000,000 |  |  |  |  |  |  |
Shanghai TCH [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration amount |  |  |  |  | $ 440,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |
Xi'an Tch Limited Partner [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capitalized interest to construction in progress |  |  |  |  |  |  | $ 4,390,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt amount paid |  |  |  |  | $ 2,168,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hongyuan Huifu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration amount |  |  |  |  | 502,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Projects Transfer Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transfer Agreement, description |  |  |  | Xi'an Zhonghong completed the transfer of Xuzhou Huayu Project to Mr. Chonggong Bai for RMB 120,000,000 (US$17.52 million) and Xi'an TCH completed the transfer of Shenqiu Phase I and II Projects to Mr. Bai for RMB 127,066,000 ($18.55 million). Mr. Bai agreed to transfer all the equity shares of his wholly owned company, Xi'an Hanneng to HYREF as repayment by Xi'an Zhonghong for the RMB 247,066,000 ($36.07 million) loan to HYREF as consideration for the transfer of the Xuzhou Huayu Project and Shenqiu Phase I and II Projects. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transfer Agreement [Member] | Hyref [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable |  |  |  |  | 27,540,000 |  |  |  |  | $ 27,540,000 |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  | 10.00% | 10.00% |  |  |  |  |  |  |  |
Transfer Agreement [Member] | Hongyuan Huifu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration amount |  |  |  |  | $ 504,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  | 40.00% |  |  |  |  |  |  |  |  |  | 40.00% |  |  |  |
Transfer Agreement [Member] | RMB [Member] | Hyref [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable | ¥ |  |  |  |  |  |  |  |  |  |  | ¥ 188,639,400 |  |  |  |  |  |  |  |
Supplemental Agreement [Member] | Hongyuan Huifu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration amount |  |  |  |  | $ 2,672,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total fund capital contribution | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 460,000,000
Long term debt maturities repayments of principal in fourth year | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 16,270,000 |  |
Long term debt maturities repayments of principal in fifth year | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 77,000,000 |  |
Remaining debt amount | $ 45,540,000 |  | ¥ 230,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
RMB [Member] | Shenqiu Phase I & II project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable | ¥ |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 127,066,000 |  |  |  |  |  |
Debt amount paid | ¥ |  |  |  |  |  |  |  |  |  |  |  |  | 247,066,000 |  |  |  |  |  |
RMB [Member] | Xuzhou Huayu project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable | ¥ |  |  |  |  |  |  |  |  |  |  |  |  | 120,000,000 |  |  |  |  |  |
Debt amount paid | ¥ |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 247,066,000 |  |  |  |  |  |
RMB [Member] | Shanghai TCH [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration amount | ¥ |  |  |  |  |  | ¥ 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |
RMB [Member] | Xi'an Tch Limited Partner [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capitalized interest to construction in progress |  |  |  |  |  |  | 27,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt amount paid | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 14,852,800 |  |  |  |
RMB [Member] | Hongyuan Huifu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt amount paid | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,453,867 |  |  |  |
RMB [Member] | Transfer Agreement [Member] | Hyref [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 188,639,400 |  |  |  |
RMB [Member] | Transfer Agreement [Member] | Hongyuan Huifu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration amount | ¥ |  |  |  |  |  | 3,453,867 |  |  |  |  |  |  |  |  |  |  |  |  |
RMB [Member] | Supplemental Agreement [Member] | Hongyuan Huifu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration amount | ¥ |  |  |  |  |  | ¥ 18,306,667 |  |  |  |  |  |  |  |  |  |  |  |  |
Entrusted loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt investments |  |  |  |  |  |  | 74,500,000 |  |  |  |  |  |  |  |  |  |  |  |
Long term debt maturities repayments of principal in third year |  |  |  |  |  |  |  |  | $ 280,000,000 |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  | 12.50% |  |  |  |  | 12.50% |  |  |  |  |
Interest expense |  |  |  |  |  |  |  | $ 337,000,000 | $ 5,190,000 |  |  |  |  |  |  |  |  |  |
Capitalized interest to construction in progress |  |  |  |  |  |  |  | 238,000,000 |  |  |  |  |  |  |  |  |  |  |
Loan payable outstanding balance |  |  |  |  |  |  |  |  | 59,290,000 |  |  |  |  |  |  |  |  |  |
Debt amount paid |  |  |  |  |  |  |  |  | 7,540,000 |  |  |  |  |  |  |  |  |  |
Entrusted loan [Member] | Xi'an Tch Limited Partner [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable |  |  |  |  |  |  |  |  | $ 10,920,000 |  |  |  |  |  |  |  |  |  |
Capitalized interest to construction in progress |  |  |  |  |  |  |  | $ 10,920,000 |  |  |  |  |  |  |  |  |  |  |
Entrusted loan [Member] | RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt investments | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 457,000,000
Debt amount paid | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 50,000,000 |  |  |  |  |
Zhonghong [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable for first three years, description |  |  |  |  |  |  |  | During the first three years from the first release of the loan, the balance in its account shall be no less than RMB 7.14 million ($1.19 million) on the 20th day of the second month of each quarter and no less than RMB 14.28 million ($2.38 million) on the 14th day of the last month of each quarter |  |  |  |  |  |  |  |  |  |  |
Loan payable for fourth year, description |  |  |  |  |  |  |  | During the fourth year from the first release of the loan, the balance in its account shall be no less than RMB 1.92 million ($0.32 million) on the 20th day of the second month of each quarter and no less than RMB 3.85 million ($0.64 million) on the 14th day of the last month of each quarter; and |  |  |  |  |  |  |  |  |  |  |
Loan payable for fifth year, description |  |  |  |  |  |  |  | During the fifth year from the first release of the loan, the balance in its account shall be no less than RMB 96,300 ($16,050) on the 20th day of the second month of each quarter and no less than RMB 192,500 ($32,080) on the 14th day of the last month of each quarter. |  |  |  |  |  |  |  |  |  |  |
Long term debt maturities repayments of principal in third year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 42,220,000 |
HYREF [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investments |  |  |  |  |  |  | 500,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt investments |  |  |  |  |  |  | 74,500,000 |  |  |  |  |  |  |  |  |  |  |  |
Total fund capital contribution |  |  |  |  |  |  | $ 77,000,000 |  |  |  |  |  |  |  |  |  |  |  |
HYREF [Member] | RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investments | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,000,000
Debt investments | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 457,000,000

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