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Major Customer And Geographic Information (Schedule Of Major Customer Data) (Details)	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
IMOD [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	23.00%	23.00%	21.00%
U.S. Government [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	8.00%	7.00%	6.00%

X

- Definition

The percentage of net product revenue to total net revenue from the sale of goods as of year end.

+ References

No definition available.

+ Details

Name:	us-gaap_SalesRevenueGoodsNetPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_SegmentReportingRevenueReconcilingItemLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration