Organization And Summary Of Significant Accounting Policies (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) segment entity shares	Dec. 31, 2018 USD ($) shares	Dec. 31, 2017 shares
Number of subsidiaries | entity	2
Number of reporting units with goodwill | segment	1
Goodwill impairment	$ 0	$ 0
Potentially dilutive shares of common stock | shares	70,369	118,861	122,434
Shares excluded from calculation of diluted earnings per share | shares	43,385	27,600	0
Leases, initial term	12 months
Leases, right-of-use assets	$ 3,720
Leases, liabilities	4,154
Other liabilities	16,428	$ 17,031
Operating lease expenses	700
Payments to lease liabilities	$ 700
Leases, weighted average discount rate	3.50%
Leases, weighted average remaining lease term	8 years 6 months
Future Minimum Lease Payments, 2020		736
Future Minimum Lease Payments, 2021		682
Future Minimum Lease Payments, 2022		694
Future Minimum Lease Payments, 2023		580
Future Minimum Lease Payments, Thereafter		2,100
Standby Letters Of Credit [Member]
Maximum potential amount of future payments	$ 4,300	3,400
Guaranty liabilities	$ 0	0
Minimum [Member]
Properties and equipment estimated useful life	3 years
Maximum [Member]
Properties and equipment estimated useful life	39 years
ASU 2016-02 [Member]
Leases, right-of-use assets		4,300
Leases, liabilities		4,700
Other liabilities		$ 400