Organization And Summary Of Significant Accounting Policies (Summary of Potential Common Shares Excluded From Diluted Calculation) (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Employee stock options	517	917	1,386