Organization And Summary Of Significant Accounting Policies (Schedule Of Assets Or Liabilities Measured On Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value, beginning of period	$ 15,935	$ 0
Net unrealized (gains) losses, included in other income (loss)	(10,028)	247
Purchases, sales, issuances and settlements, net	0	15,688
Gross transfers in	0	0
Gross transfers out	0	0
Fair value, end of period	5,907	15,935
Changes in realized (gains) losses, included in income on instruments held at end of period	0	0
Changes in unrealized (gains) losses, included in income on instruments held at end of period	(10,028)	247
Series C Preferred Embedded Derivative [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value, beginning of period	7,205	0
Net unrealized (gains) losses, included in other income (loss)	(5,059)	130
Purchases, sales, issuances and settlements, net	0	7,075
Gross transfers in	0	0
Gross transfers out	0	0
Fair value, end of period	2,146	7,205
Changes in realized (gains) losses, included in income on instruments held at end of period	0	0
Changes in unrealized (gains) losses, included in income on instruments held at end of period	(5,059)	130
Warrant Derivative [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value, beginning of period	8,730	0
Net unrealized (gains) losses, included in other income (loss)	(4,969)	117
Purchases, sales, issuances and settlements, net	0	8,613
Gross transfers in	0	0
Gross transfers out	0	0
Fair value, end of period	3,761	8,730
Changes in realized (gains) losses, included in income on instruments held at end of period	0	0
Changes in unrealized (gains) losses, included in income on instruments held at end of period	$ (4,969)	$ 117