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Summary of Significant Accounting Policies (Details Textual) - USD ($) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2018 | Dec. 31, 2017
Summary of Significant Accounting Policies (Textual) |  |
Accounts receivable | $ 13,203,156 | $ 13,369,655
Interest receivable on sales type leases | 10,295,813 | 9,869,357
Asset impairment loss |  | 38,859
Bad debt allowance for net investment receivable | $ 2,586,479 | $ 1,802,822
Description of corporate income tax rate | The provisions of the Tax Act that may have significant impact on the Company include the permanent reduction of the corporate income tax rate from 35% to 21% effective for tax years including or commencing on January 1, 2018. |
U.S. corporate income taxes | 21.00% |
U.S. corporate income taxes for prior | 35.00% |
Xi'an TCH [Member] |  |
Summary of Significant Accounting Policies (Textual) |  |
Equity method investment, ownership percentage | 100.00% |
Erdos TCH [Member] |  |
Summary of Significant Accounting Policies (Textual) |  |
Equity method investment, ownership percentage | 100.00% |
Zhonghong [Member] |  |
Summary of Significant Accounting Policies (Textual) |  |
Equity method investment, ownership percentage | 90.00% |

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