v2.4.0.6
Organization And Summary Of Significant Accounting Policies (Comprehensive Loss) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2010
Mar. 31, 2010
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Organization And Summary Of Significant Accounting Policies [Abstract]                      
Net loss $ (12,251) $ (13,278) $ (7,367) $ (11,850) $ (9,812) $ (13,398) $ (11,687) $ (20,273) $ (44,746) $ (55,170) $ (53,524)
Unrealized gain (loss) on available-for-sale marketable securities                 9 (5) (54)
Foreign currency translation loss                 (23) (48) (9)
Comprehensive loss                 $ (44,760) $ (55,223) $ (53,587)