Organization And Summary Of Significant Accounting Policies (Net Income (Loss) Per Common Share) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Organization And Summary Of Significant Accounting Policies Net Income Loss Per Common Share Details
Basic weighted average shares outstanding	46,694,058	48,132,664	47,155,592	48,132,664
Dilutive warrants	361,388	157,709	318,237	157,709
Diluted weighted average shares outstanding	47,055,446	48,290,373	47,473,829	48,290,373