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Contingencies (Details) - USD ($) | Aug. 21, 2020 | Mar. 21, 2018
--- | --- | ---
Contingencies (Details) [Line Items] |  |
Additional loan | $ 145,356,100 |
Mr. Ku [Member] |  |
Contingencies (Details) [Line Items] |  |
Loan agreement |  | $ 371,470
Xi’an TCH [Member] |  |
Contingencies (Details) [Line Items] |  |
Loan agreement |  | $ 254,824

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