Investments (Amortized Cost And Fair Value Of Debt Securities, By Contractual Maturity) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Investments [Abstract]
Due in one year or less, Amortized cost	$ 2,162
Due after one year through five years, Amortized cost	11,038
Due after five years through ten years, Amortized cost	26,176
Due after ten years, Amortized cost	41,997
Amortized Cost Contractual Maturities Subtotal	81,373
Mortgage-backed securities, Amortized cost	62,358
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis	143,731
Due in one year or less, Fair value	2,169
Due after one year through five years, Fair value	11,183
Due after five years through ten years, Fair value	26,392
Due after ten years, Fair value	41,453
Fair Value Contractual Maturities Subtotal	81,197
Mortgage-backed securities, Fair value	62,388
Available-for-sale Securities, Debt Securities, Fair Value	$ 143,585