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Commitments and Contingencies (Details Textual) |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |  |
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Oct. 16, 2018 USD ($) | Oct. 16, 2018 CNY (¥) | Jul. 07, 2016 USD ($) | Jul. 07, 2016 CNY (¥) | Dec. 31, 2018 CNY (¥) | Dec. 31, 2017 USD ($) | Dec. 31, 2017 CNY (¥) | Dec. 19, 2017 USD ($) | Dec. 19, 2017 CNY (¥) | Jun. 30, 2017 USD ($) | Jun. 30, 2017 CNY (¥) | May 31, 2017 USD ($) | May 31, 2017 CNY (¥) | Jun. 30, 2018 USD ($) | Jun. 30, 2018 CNY (¥) | Dec. 31, 2017 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2019 CNY (¥) | May 20, 2019 USD ($) | May 20, 2019 CNY (¥) | Dec. 31, 2018 USD ($) | Nov. 08, 2018 USD ($) | Nov. 08, 2018 CNY (¥) | Sep. 07, 2016 USD ($)
Commitments and contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Construction cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,593,728 |  |  |  |  |  |  |
Interest [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount |  |  |  |  |  |  |  |  |  |  |  | $ 124,074 |  |  |  |  |  |  |  |  |  |  |  |
RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Construction cost | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 10,962,140 |  |  |  |  |  |
RMB [Member] | Interest [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount | ¥ |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 851,858 |  |  |  |  |  |  |  |  |  |  |
Anyuan Bus [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,538,416 |  | $ 2,633,185 |  |  |  |  |  |  |  |
Anyuan Bus [Member] | Goods Amount [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount |  |  |  |  |  |  |  |  |  |  |  | $ 2,538,416 |  |  |  |  |  |  |  |  |  |  |  |
Litigation fees |  |  |  |  |  |  |  | $ 19,150 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Anyuan Bus [Member] | RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount | ¥ |  |  |  |  | ¥ 17,428,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Power sought a total amount | ¥ |  |  |  |  |  |  |  |  |  |  |  |  | 18,279,858 |  |  |  |  |  |  |  |  |  |  |
Anyuan Bus [Member] | RMB [Member] | Goods Amount [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount | ¥ |  |  |  |  |  |  |  |  | ¥ 17,428,000 |  |  |  | ¥ 17,428,000 |  |  |  |  |  |  |  |  |  |  |
Litigation fees | ¥ |  |  |  |  |  |  |  |  | ¥ 131,480 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  | $ 1,227,964 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | Interest [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  | 30,934 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | Compensation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  | 300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | Remaining Contract Amount [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount |  |  |  |  |  |  |  |  |  | $ 900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | Other Expense [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000 |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | Construction costs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  | 900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount | ¥ |  |  |  | ¥ 8,430,792 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | RMB [Member] | Interest [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount | ¥ |  |  |  | 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | RMB [Member] | Compensation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount | ¥ |  |  |  | ¥ 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | RMB [Member] | Remaining Contract Amount [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount | ¥ |  |  |  |  |  |  |  |  |  |  | ¥ 6,135,860 |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  |  |  |  | $ 35,676 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | Interest [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  |  |  |  | 904 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | Construction costs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  |  |  |  | $ 34,772 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount | ¥ |  |  |  |  |  |  | ¥ 244,942 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | RMB [Member] | Interest [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 6,207 |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | RMB [Member] | Construction costs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 238,735 |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  | $ 1,227,964 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank deposits frozen |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,227,964
Litigation fees | $ 11,221 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Construction cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 900,000 |  | $ 258,435 |  |  | $ 1,329,780 |  |
Shenzhen Huijie [Member] | RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Litigation fees | ¥ |  | ¥ 77,042 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Construction cost | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 6,100,000 |  | ¥ 1,774,337 |  |  | ¥ 129,868 |

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