Other Current Liabilities (Schedule Of Other Current Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Other Current Liabilities [Line items]
Other Current Liabilities	$ 17,007	$ 17,962
Manufacturing And Technology Transfer Services [Member]
Other Current Liabilities [Line items]
Other Current Liabilities	566	2,577
Selling And Marketing Expense Accrual [Member]
Other Current Liabilities [Line items]
Other Current Liabilities	2,711	721
Salaries And Related Expenses [Member]
Other Current Liabilities [Line items]
Other Current Liabilities	3,432	4,086
Severance [Member]
Other Current Liabilities [Line items]
Other Current Liabilities	1,297	1,006
Legal And Professional Fees [Member]
Other Current Liabilities [Line items]
Other Current Liabilities	1,733	2,776
Accrued Royalties [Member]
Other Current Liabilities [Line items]
Other Current Liabilities	1,696	1,783
Fees for Contracted European RMS [Member]
Other Current Liabilities [Line items]
Other Current Liabilities	1,033
Allowance For Product Returns [Member]
Other Current Liabilities [Line items]
Other Current Liabilities	870	852
Returned Product Liability [Member]
Other Current Liabilities [Line items]
Other Current Liabilities	1,093	1,087
Other [Member]
Other Current Liabilities [Line items]
Other Current Liabilities	$ 2,576	$ 3,074