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Balance Sheet Components (Schedule Of Accrued Expenses) (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Balance Sheet Components [Abstract]    
Salaries and benefits $ 8,562 $ 8,129
Accrued license and development services 5,411 5,459
Inventory accrual, professional services, accrued interest and other 2,631 1,963
Accrued expenses $ 16,604 $ 15,551