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Concentrations (Details Textual) - Customers	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Customer Concentration Risk I | Continuing operations [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	21.00%	16.00%	44.00%
Number of major customers	2	2	2
Customer Concentration Risk I | Discontinued Operations [Member]
Concentration Risk [Line Items]
Concentration risk, percentage			12.00%
Number of major customers			2
Customer Concentration Risk II | Continuing operations [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	15.00%	13.00%
Number of major customers	2	2
Supplier Concentration Risk I | Continuing operations [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	100.00%	31.00%	40.00%
Number of major customers	1	2	2
Supplier Concentration Risk I | Discontinued Operations [Member]
Concentration Risk [Line Items]
Concentration risk, percentage			23.00%
Number of major customers			2
Supplier Concentration Risk II | Continuing operations [Member]
Concentration Risk [Line Items]
Concentration risk, percentage		17.00%
Number of major customers		2

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- Definition

Number of customers.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
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