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Concentration and Major Customers and Suppliers (Details) - Customers	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Concentration and major customers and suppliers (Textual)
Number of major suppliers	2	3	3
Number of customer contributed over 10% of total sales
Revenue [Member]
Concentration and major customers and suppliers (Textual)
Percentage of revenue	10.00%
Supplier A [Member]
Concentration and major customers and suppliers (Textual)
Percentage of revenue	61.00%	62.00%	75.00%
Supplier B [Member]
Concentration and major customers and suppliers (Textual)
Percentage of revenue	17.00%	14.00%	10.00%
Supplier C [Member]
Concentration and major customers and suppliers (Textual)
Percentage of revenue		9.00%	7.00%

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Number of customer contributed over 10% of total sales.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592

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-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
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-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611

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