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Concentrations (Details Textual) - Customers	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Customer Concentration Risk I | Continuing operations [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	31.00%	44.00%	92.00%
Number of major customers	2	2	1
Customer Concentration Risk I | Continuing operations [Member] | Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	10.00%	10.00%	10.00%
Customer Concentration Risk I | Discontinued Operations [Member]
Concentration Risk [Line Items]
Concentration risk, percentage			92.00%
Number of major customers			1
Customer Concentration Risk II | Continuing operations [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	17.00%	12.00%
Number of major customers	2	2
Supplier Concentration Risk I | Continuing operations [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	31.00%	40.00%	95.00%
Number of major customers	2	2	1
Supplier Concentration Risk I | Continuing operations [Member] | Cost of Goods, Total [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	10.00%	10.00%	10.00%
Supplier Concentration Risk I | Discontinued Operations [Member]
Concentration Risk [Line Items]
Concentration risk, percentage			94.00%
Number of major customers			1
Supplier Concentration Risk II | Continuing operations [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	17.00%	23.00%
Number of major customers	2	2

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- Definition

Number of customers.

+ References

No definition available.

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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
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13531-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
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-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13537-108611

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-Topic 275
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-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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