Organization And Summary Of Significant Accounting Policies (Narrative) (Details) - entity	3 Months Ended
	Mar. 31, 2020	Mar. 16, 2020	Mar. 03, 2020
Number of subsidiaries	2
Federal Funds Target Rate		1.00%	0.50%
Minimum [Member]
Federal Funds Target Rate	0.00%
Maximum [Member]
Federal Funds Target Rate	0.25%