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Statutory Reserves (Details) - Dec. 31, 2017 | USD ($) | CNY (¥)
--- | --- | ---
Shanghai TCH [Member] |  |
Schedule Of Statutory Reserves [Line Items] |  |
Capital | $ 29,800,000 |
Maximum statutory reserve amount | 14,900,000 |
Statutory reserve | 1,003,859 | ¥ 6,564,303
Xi'an TCH [Member] |  |
Schedule Of Statutory Reserves [Line Items] |  |
Capital | ¥ |  | 202,000,000
Maximum statutory reserve amount | ¥ |  | 101,000,000
Statutory reserve | 10,606,984 | 69,359,820
Erdos TCH [Member] |  |
Schedule Of Statutory Reserves [Line Items] |  |
Capital | ¥ |  | 120,000,000
Maximum statutory reserve amount | ¥ |  | 60,000,000
Statutory reserve | 3,122,518 | 20,418,368
Xi'an Zhonghong [Member] |  |
Schedule Of Statutory Reserves [Line Items] |  |
Capital | ¥ |  | 30,000,000
Maximum statutory reserve amount | ¥ |  | ¥ 15,000,000
Statutory reserve |  |
Shaanxi Huahong [Member] |  |
Schedule Of Statutory Reserves [Line Items] |  |
Capital | 2,500,300 |
Maximum statutory reserve amount | 1,250,150 |
Statutory reserve |  |
Zhongxun [Member] |  |
Schedule Of Statutory Reserves [Line Items] |  |
Capital | 35,000,000 |
Maximum statutory reserve amount | 17,500,000 |
Statutory reserve |  |

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