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Loans Payable (Details) |  | 1 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |
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Dec. 19, 2019 USD ($) | Dec. 19, 2019 CNY (¥) | Dec. 20, 2019 | Dec. 19, 2019 USD ($) | Dec. 19, 2019 CNY (¥) | Feb. 15, 2019 | Dec. 29, 2018 USD ($) | Jun. 30, 2020 USD ($) | Dec. 31, 2019 USD ($) | Jun. 30, 2020 CNY (¥) | Dec. 19, 2019 CNY (¥) | Jan. 22, 2019 USD ($) | Jan. 22, 2019 CNY (¥) | Jan. 04, 2019 USD ($) | Jan. 04, 2019 CNY (¥) | Dec. 31, 2018 USD ($) | Dec. 29, 2018 CNY (¥) | Jul. 30, 2018 USD ($) | Jul. 30, 2018 CNY (¥) | Aug. 06, 2017 USD ($) | Aug. 06, 2017 CNY (¥) | Aug. 06, 2016 USD ($) | Aug. 06, 2016 CNY (¥)
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt amount paid |  |  |  |  |  |  | $ 504,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term debt maturities repayments of principal in fourth year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 16,270,000 | ¥ 100,000,000 |  |
Loan payable outstanding balance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,920,000 |  |  |  |  |  |  |
Loan payable |  |  |  |  |  |  |  | $ 280,000 | $ 290,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of remaining loan balance |  |  |  |  |  |  |  | The Company had paid RMB 50 million ($7.54 million) of the RMB 280 million ($42.22 million), and on August 5, 2016, the Company entered into a supplemental agreement with the lender to extend the due date of the remaining RMB 230 million ($34.68 million) of the original RMB 280 million ($45.54 million) to August 6, 2017. During the year ended December 31, 2017, 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 had 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. The headquarters did not approve the extension proposal with an adjusted annual interest rate of 9%; however, on December 29, 2018, the Company worked out with the lender an alternative repayment proposal as described below. As of June 30, 2020, the interest payable for this loan was $8.71 million and the outstanding balance for this loan was $20.46 million. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest payable for loan |  |  |  |  |  |  |  |  | 8,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding loan balance |  |  |  |  |  |  |  |  | $ 20,770,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total buy back price | $ 37,520,000 |  |  | $ 37,520,000 |  |  |  |  |  |  | ¥ 261,727,506 |  |  |  |  |  |  |  |  |  |  |  |
Description of fund management supplemental agreement |  |  |  |  |  | The Company recorded $397,033 loss from this transfer during the year ended December 31, 2019. On January 10, 2019, Mr. Chonggong Bai transferred all the equity shares of his wholly owned company, Xi’an Hanneng, to HYREF as repayment for the loan. Xi’an Hanneng was expected to own 47,150,000 shares of Xi’an Huaxin New Energy Co., Ltd for the repayment of Huayu system and Shenqiu system. As of September 30, 2019, Xi’an Hanneng already owned 29,948,000 shares of Huaxin, but was not able to obtain the remaining 17,202,000 shares due to halted trading of Huaxin stock by NEEQ for not filing its 2018 annual report. On December 20, 2019, Mr. Bai and all the related parties agreed to have Mr. Bai instead pay in cash for the transfer price of Huayu (see Note 9 for detail). |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transfer agreement, description |  |  |  |  |  |  |  | The ownership of Pucheng systems was transferred to Pucheng in January 2020 as a result of receiving full payment from Pucheng to Xi’an TCH. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transfer price installment payments, description |  |  | Mr. Bai, Xi’an TCH and Xi’an Zhonghong agreed to have Mr. Bai repay the Company in cash for the transfer price of Xuzhou Huayu and Shenqiu in five installment payments. The 1st payment of RMB 50 million ($7.17 million) is due on January 5, 2020, the 2nd payment of RMB 50 million ($7.17 million) was due on February 5, 2020, the 3rd payment of RMB 50 million ($7.17 million) was due on April 5, 2020, the 4th payment of RMB 50 million ($7.17 million) is due on June 30, 2020, and the final payment of RMB 47,066,000 ($6.75 million) is due on September 30, 2020. As of this report date, the Company has already received RMB 200 million ($28.68 million). |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lender repayment, description |  |  | The lender agreed to extend the repayment of RMB 77.00 million ($11.04 million) to July 8, 2023; of which, RMB 75.00 million ($10.81 million) was Xi’an TCH’s investment into the HYREF fund as a secondary limited partner, and the Company netted off the investment of RMB 75 million ($10.81 million) by Xi’an TCH with the entrusted loan payable of the HYREF Fund. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hongyuan Huifu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt amount paid | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 3,453,867 |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  | 40.00% |  | 40.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Shanghai TCH [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transfer agreement, description |  |  |  |  |  |  | Shanghai TCH entered into a Share Transfer Agreement with HYREF, pursuant to which HYREF agreed to transfer its 10% ownership in Xi’an Zhonghong to Shanghai TCH for RMB 3 million ($430,034), and was recorded as long term payable in the Company’s balance sheet. On January 22, 2019, Hongyuan Huifu completed the transfer of its 10% ownership in Xi’an Zhonghong to Shanghai TCH, Xi’an Zhonghong then became a 100% subsidiary of the Company. The Company did not record any gain or loss for this purchase as the controlling interest did not change. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Xi’an Zhonghong [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term debt maturities repayments of principal in third year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 42,220,000 | ¥ 280,000,000
Debt amount paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,540,000 | ¥ 50,000,000
Long term debt maturities repayments of principal in fifth year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 12,520,000 | ¥ 77,000,000 |  |  |  |
HYREF loan (entrusted loan) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12.50% | 12.50% |  |  |  |
Loan payable outstanding balance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 59,290,000 |  |  |  |  |  |  |
HYREF loan (entrusted loan) [Member] | Limited Partner [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,920,000 |  |  |  |  |  |  |
HYREF [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |
Transfer Agreement [Member] | Hongyuan Huifu [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  | 40.00% |  |  |  |  | 40.00% | 40.00% |  |  |  | 40.00% |  |  |  |  |  |
Transfer Agreement [Member] | HYREF [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable |  |  |  |  |  |  | $ 27,540,000 |  |  |  |  | $ 27,540,000 | ¥ 188,639,400 |  |  |  | ¥ 188,639,400 |  |  |  |  |  |
Xuzhou Huayu project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 17,520,000 | ¥ 120,000,000 |  |  |  |  |  |  |  |
Xuzhou Huayu project [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt amount paid |  |  |  |  |  |  |  |  |  |  |  |  |  | 18,550,000 | 127,066,000 |  |  |  |  |  |  |  |
Loan payable |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 36,070,000 | ¥ 247,066,000 |  |  |  |  |  |  |  |
Mr. Chonggong Bai [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of remaining loan balance |  |  |  |  |  |  |  | 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. Xi’an Hanneng already owned 29,948,000 shares of Huaxin; however, Xi’an Hanneng was not able to obtain the remaining 17,202,000 shares due to halted trading of Huaxin stock by NEEQ for not filing its 2018 annual report. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
HYREF loan (entrusted loan) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total fund capital contribution |  |  |  |  |  |  |  | $ 77,000,000 |  | ¥ 460,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Description of equity investment |  |  |  |  |  |  |  | The HYREF Fund invested RMB 3 million ($0.5 million) as an equity investment and RMB 457 million ($74.5 million) as a debt investment in Xi’an Zhonghong; in return for such investments, the HYREF Fund will receive interest from Zhonghong for the HYREF Fund’s debt investment. The RMB 457 million ($74.5 million) original loan balance was released to Zhonghong through an entrusted bank, which is also the supervising bank for the use of the loan. The loan was deposited in a bank account at the Supervising Bank (the Industrial Bank Xi’an Branch) and is jointly supervised by Zhonghong and the Fund Management Company. Project spending shall be verified by the Fund Management Company to confirm it is in accordance with the project schedule before the funds are released. All the operating accounts of Zhonghong have been opened with the branches of the Supervising Bank, and the Supervising Bank has the right to monitor all bank accounts opened by Zhonghong. The entrusted bank will charge 0.1% of the loan amount as a service fee and will not take any lending risk. The loan was collateralized by the accounts receivable and the fixed assets of Shenqiu Phase I and II power generation systems; the accounts receivable and fixed assets of Zhonghong’s three CDQ WHPG systems; and a 27 million RMB ($4.39 million) capital contribution made by Xi’an TCH in Zhonghong. Repayment of the loan (principal and interest) was also jointly and severally guaranteed by Xi’an TCH and the Chairman and CEO of the Company. In the fourth quarter of 2015, three power stations of Erdos TCH were pledged to Industrial Bank as an additional guarantee for the loan to Zhonghong’s three CDQ WHPG systems. In 2016, two additional power stations of Erdos TCH and Pucheng Phase I and II systems were pledged to Industrial Bank as an additional guarantee along with Xi’an TCH’s equity in Zhonghong. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Xi’an TCH [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total buy back price | 37,520,000 |  |  | 37,520,000 |  |  |  |  |  |  | ¥ 261,727,506 |  |  |  |  |  |  |  |  |  |  |  |
Accrued Interest | $ 2,100,000 | ¥ 14,661,506 |  | $ 2,100,000 | ¥ 14,661,506 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  | 40.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss from sale |  |  |  |  |  |  |  |  | $ 46,461 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of fund management supplemental agreement |  |  |  |  |  |  | On December 29, 2018, Xi’an TCH, Hongyuan Huifu and Fund Management Company entered into a supplemental agreement to the Share Transfer Agreement. Xi’an TCH owes the Fund Management Company RMB 18,306,667 ($2,672,000) in financial advisory fees, and the parties agreed that the Fund Management Company Transfer Price could be used to offset the outstanding financial advisory fees. Upon the completion of this transaction, the Fund Management Company owed RMB 3,453,867 ($502,400) to Hongyuan Huifu, and Xi’an TCH owed RMB 14,852,800 ($2,168,000) to the Fund Management Company. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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