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Concentrations of Credit Risk and Major Customers (Details Textual)	12 Months Ended
	Dec. 31, 2017		Dec. 31, 2016	Dec. 31, 2015
Customers [Member]
Concentrations of Credit Risk and Major Customers (Textual)
Customer, concentration risk, description	Customers accounting for 10% or more		Customers accounting for 10% or more	Customers accounting for 10% or more
Concentration risk, percentage		[1]	12.00%		[1]
Customer [Member] | Accounts Receivable [Member]
Concentrations of Credit Risk and Major Customers (Textual)
Concentration risk, percentage			24.07%
Customer B [Member]
Concentrations of Credit Risk and Major Customers (Textual)
Concentration risk, percentage	10.89%		12.67%	12.54%
Customer B [Member] | Accounts Receivable [Member]
Concentrations of Credit Risk and Major Customers (Textual)
Concentration risk, percentage	14.77%
Customer C [Member] | Accounts Receivable [Member]
Concentrations of Credit Risk and Major Customers (Textual)
Concentration risk, percentage			10.99%
Customer E [Member] | Accounts Receivable [Member]
Concentrations of Credit Risk and Major Customers (Textual)
Concentration risk, percentage	15.76%
Suppliers [Member]
Concentrations of Credit Risk and Major Customers (Textual)
Supplier, concentration risk, description	Suppliers accounting for 10		Suppliers accounting for 10% or more	Suppliers accounting for 10% or more
Concentration risk, percentage	10.65%		14.12%		[1]
Suppliers [Member] | Account Payable [Member]
Concentrations of Credit Risk and Major Customers (Textual)
Concentration risk, percentage	10.00%		10.00%
Suppliers [Member] | Notes Payable [Member]
Concentrations of Credit Risk and Major Customers (Textual)
Concentration risk, percentage	10.00%		10.00%
[1] Less than 10%

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Description of risks that arise due to the volume of business transacted with a particular customer. At a minimum, the description informs financial statement users of the general nature of the risk, but excludes "Information about Major Customers" that may be disclosed elsewhere (for instance, segment disclosures).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6351-108592

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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.

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Description of risks that arise due to the volume of business transacted with a particular supplier or reliance placed on that supplier. At a minimum, the description informs financial statement users of the general nature of the risk.

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