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v3.20.2

Related Party Transactions (Details) | Jun. 30, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 19, 2019 USD ($) | Dec. 19, 2019 CNY (¥) | Dec. 29, 2018 USD ($) | Dec. 29, 2018 CNY (¥)
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Related Party Transactions (Details) [Line Items] |  |  |  |  |  |
Buy back price |  |  | $ 37,520,000 | ¥ 261,727,506 |  |
Advances from related party | $ 28,720 | $ 41,174 |  |  |  |
Xi’an TCH [Member] |  |  |  |  |  |
Related Party Transactions (Details) [Line Items] |  |  |  |  |  |
Buy back price |  |  |  |  | $ 37,520,000 | ¥ 261,727,506
Accrued interest |  |  |  |  | $ 2,100,000 | ¥ 14,661,506

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