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Litigation fees.

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No definition available.

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Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.

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- Definition

Amount of progress payment netted against construction contract cost.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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The amount or range of possible amounts of gain that could be realized upon the resolution of a contingency.

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Amount awarded to other party in judgment or settlement of litigation.

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No definition available.

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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Commitments and Contingencies (Details Textual)					1 Months Ended									6 Months Ended		12 Months Ended
Commitments and Contingencies (Details Textual)	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