Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

No definition available.

Name:	us-gaap_NumberOfOperatingSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Nature of Operations and Summary of Significant Accounting Policies (Details)	9 Months Ended
	Sep. 30, 2019 a segment	Apr. 24, 2018
Business Acquisition [Line Items]
Number of Operating Segments \| segment	2
Mobile Energy Group, Formerly We Cast Services [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Commercial Electronic Vehicles, Economic Useful Life	10 years
Mobile Energy Group, Formerly We Cast Services [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Commercial Electronic Vehicles, Economic Useful Life	15 years
Shanghai Guang Ming Investment Management ("Guang Ming") [Member]
Business Acquisition [Line Items]
Percentage of equity ownership		100.00%
DBOT [Member]
Business Acquisition [Line Items]
Area of Land \| a	58