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.

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=84177426&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=77997519&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=84177426&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13537-108611

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Concentrations (Details) - Purchase [Member]	9 Months Ended
Concentrations (Details) - Purchase [Member]	Sep. 30, 2017	Sep. 30, 2016
Concentration of purchase from suppliers
Concentration risk supplier, Percentage	10.00%	10.00%
Supplier A [Member]
Concentration of purchase from suppliers
Concentration risk supplier, Percentage	22.00%
Supplier B [Member]
Concentration of purchase from suppliers
Concentration risk supplier, Percentage	12.00%
Supplier C [Member]
Concentration of purchase from suppliers
Concentration risk supplier, Percentage		23.00%
Suppliers D [Member]
Concentration of purchase from suppliers
Concentration risk supplier, Percentage		12.00%
Suppliers E [Member]
Concentration of purchase from suppliers
Concentration risk supplier, Percentage		10.00%