Investments In Securities and Fair Value (Schedule Of Fixed Maturity Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Due in one year or less, Amortized Cost	$ 33,153
Due after one year through five years, Amortized Cost	40,527
Due five years through ten years, Amortized Cost	22,167
Due after ten years, Amortized Cost	814
Total, Amortized Cost	96,661
Due in one year or less, Fair Value	33,434
Due after one year through five years, Fair Value	43,423
Due five years through ten years, Fair Value	23,897
Due after ten years, Fair Value	1,361
Total, Fair Value	$ 102,115	$ 104,638