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Segment Information and Concentrations of Risk (Details Textual)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012 Customer One [Member]	Mar. 31, 2012 Customer Two [Member]
Segment Information and Concentrations of Risk (Textual) [Abstract]
Net Revenue, Percentage	60.00%	55.00%	13.00%

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- Details

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- Definition

Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues.

+ References

No definition available.

+ Details

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