Organization And Summary Of Significant Accounting Policies (Schedule Of Derivative Liabilities At Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Derivative liabilities, at fair value	$ 20,337	$ 5,907
Series C preferred embedded derivative [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities, at fair value	13,804	3,761
Warrant Derivative [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities, at fair value	$ 6,533	$ 2,146