Investments (Amortized Cost And Fair Value Of Debt Securities, By Contractual Maturity) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Investments [Abstract]
Due in one year or less, Amortized cost	$ 16,599
Due after one year through five years, Amortized cost	29,643
Due after five years through ten years, Amortized cost	51,454
Due after ten years, Amortized cost	30,602
Amortized Cost Contractual Maturities Subtotal	128,298
Mortgage-backed securities, Amortized cost	58,901
Available-for-sale Securities, Debt Maturities, Amortized cost	187,199
Due in one year or less, Fair value	16,660
Due after one year through five years, Fair value	29,723
Due after five years through ten years, Fair value	52,026
Due after ten years, Fair value	29,891
Fair Value Contractual Maturities Subtotal	128,300
Mortgage-backed securities, Fair value	59,133
Available-for-sale Securities, Debt Securities, Fair Value	$ 187,433	$ 131,472

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