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Organization And Summary Of Significant Accounting Policies (Summary Of Potential Common Shares Excluded From Diluted Calculation) (Details)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Employee stock options 1,207 225 14