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%

Allowance for net investment receivable.

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Interest Receivable On Sales Lease.

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Percentage of U.S. corporate income taxes.

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Percentage of corporate income taxes prior.

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For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of gain (loss) from the difference between the sale price or salvage price and the book value of an asset that was sold or retired, and gain (loss) from the write down of assets from their carrying value to fair value.

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A brief description of status of the tax examination, significant findings to date, and the entity's position with respect to the findings.

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