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Segments and Major Customers (Details 2) (Customer Concentration Risk, Sales, net)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Customer A
Concentration Risk
Revenue from major customer as a percentage of total revenue	33.00%	37.00%
Customer B
Concentration Risk
Revenue from major customer as a percentage of total revenue	15.00%
Customer C
Concentration Risk
Revenue from major customer as a percentage of total revenue		13.00%
Customer D
Concentration Risk
Revenue from major customer as a percentage of total revenue	10.00%	10.00%

X

- Details

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X

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