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Summary of Significant Accounting Policies (Details) - Concentration of risk raw materials purchases
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3 Months Ended | |
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Mar. 31, 2014
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Mar. 31, 2013
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Vendor A [Member]
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| Concentration Risk [Line Items] | ||
| Purchase Of Raw Material, Concentration of Risk, Percentage | 19.00% | 13.00% |
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Vendor B [Member]
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| Concentration Risk [Line Items] | ||
| Purchase Of Raw Material, Concentration of Risk, Percentage | 18.00% | 16.00% |
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Vendor C [Member]
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| Concentration Risk [Line Items] | ||
| Purchase Of Raw Material, Concentration of Risk, Percentage | 6.00% | 16.00% |
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Vendor D [Member]
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| Concentration Risk [Line Items] | ||
| Purchase Of Raw Material, Concentration of Risk, Percentage | 9.00% | 13.00% |