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Commitments and Contingencies (Details Textual) |  |  | 1 Months Ended | 3 Months Ended |  |  |
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Nov. 08, 2018 USD ($) | Nov. 08, 2018 CNY (¥) | Jul. 07, 2016 USD ($) | Jul. 07, 2016 CNY (¥) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2017 CNY (¥) | Dec. 31, 2017 USD ($) | Dec. 19, 2017 USD ($) | Dec. 19, 2017 CNY (¥) | Jun. 30, 2017 USD ($) | Jun. 30, 2017 CNY (¥) | May 31, 2017 USD ($) | Mar. 31, 2019 USD ($) | Mar. 31, 2019 CNY (¥) | Oct. 16, 2018 USD ($) | Oct. 16, 2018 CNY (¥) | May 31, 2017 CNY (¥) | Sep. 07, 2016 USD ($)
Commitments and contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  | $ 1,256,198 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | Interest [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  | 29,800 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount | $ 1,360,361 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  | 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 | ¥ |  |  |  | 1,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | RMB [Member] | Remaining Contract Amount [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount | ¥ |  |  |  |  |  |  |  |  |  |  |  | ¥ 6,135,860 |  |  |  |  |  |  |
Shenzhen Huijie [Member] | RMB [Member] | Construction costs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount | ¥ |  |  |  | ¥ 6,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount | ¥ |  | ¥ 9,129,868 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,100,000 |  |  |  |  |
Shenzhen Huijie [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  | $ 1,256,198 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank deposits frozen |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,256,198
Shenzhen Huijie [Member] | Construction costs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount |  |  |  |  |  |  |  |  |  |  |  |  |  | 25,335 |  |  |  |  |
Payments for legal settlements |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,633,372 |  |  |  |  |
Shenzhen Huijie [Member] | RMB [Member] | Construction costs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 170,032 |  |  |  |
Payments for legal settlements |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,962,140 |  |  |  |  |
Shenzhen Huijie [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  |  |  |  | $ 36,497 |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 11,479 |  |  |
Shenzhen Huijie [Member] | Interest [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  |  |  |  | 902 |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | Construction costs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  |  |  |  | 35,572 |  |  |  |  |  |  |  |  |  |  |  |  |
Shenzhen Huijie [Member] | RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plaintiff sought a total amount |  |  |  |  |  | $ 244,942 |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and contingencies | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 77,042 |  |
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 |  |  |  |  |  |  |  |  |  |  |  |
Anyuan Bus [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount |  |  |  |  | 2,596,792 |  |  |  |  |  |  |  |  | 2,596,792 |  |  |  |  |
Power sought a total amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,723,720 |  |  |  |  |  |
Anyuan Bus [Member] | Interest [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Power sought a total amount |  |  |  |  |  |  |  |  |  |  |  |  | 126,928 |  |  |  |  |  |
Anyuan Bus [Member] | Goods Amount [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount |  |  |  |  |  |  |  |  | $ 2,596,792 |  |  |  | 2,596,792 |  |  |  |  |  |
Anyuan Bus [Member] | Litigation fee [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount |  |  |  |  |  |  |  |  | $ 19,591 |  |  |  |  |  |  |  |  |  |
Anyuan Bus [Member] | RMB [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount |  |  |  |  | $ 17,428,000 |  |  |  |  |  |  |  |  | $ 17,428,000 |  |  |  |  |
Power sought a total amount | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 18,279,858 |
Anyuan Bus [Member] | RMB [Member] | Interest [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Power sought a total amount | ¥ |  |  |  |  |  |  |  |  |  | ¥ 851,858 |  |  |  |  |  |  |  |  |
Anyuan Bus [Member] | RMB [Member] | Goods Amount [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount |  |  |  |  |  |  |  |  |  | 17,428,000 |  |  | $ 17,428,000 |  |  |  |  |  |
Anyuan Bus [Member] | RMB [Member] | Litigation fee [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract amount | ¥ |  |  |  |  |  |  |  |  |  | ¥ 131,480 |  |  |  |  |  |  |  |  |

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