Concentrations of Credit Risk (Details)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Concentrations of credit risk (Textual)
Percentage of revenue accounted by major customer	60.00%	56.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member]
Concentrations of credit risk (Textual)
Number of major customers accounted for accounts receivable	4	3
Percentage of revenue accounted by major customer	84.00%	71.00%

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

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-Section 50

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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