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Investments (Amortized Cost And Fair Value Of Debt Securities, By Contractual Maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Investments [Abstract]
Due in one year or less, Amortized cost	$ 12,900
Due after one year through five years, Amortized cost	31,461
Due after five years through ten years, Amortized cost	76,697
Due after ten years, Amortized cost	15,403
Amortized Cost Contractual Maturities Subtotal	136,461
Mortgage-backed securities, Amortized cost	69,286
Available-for-sale Securities, Debt Maturities, Amortized cost	205,747
Due in one year or less, Fair value	12,978
Due after one year through five years, Fair value	31,369
Due after five years through ten years, Fair value	77,637
Due after ten years, Fair value	15,586
Fair Value Contractual Maturities Subtotal	137,570
Mortgage-backed securities, Fair value	70,470
Available-for-sale Securities, Debt Securities, Fair Value	$ 208,040	$ 187,433

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