Securities (Schedule Of Amortized Cost And Estimated Fair Value Of Debt Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Securities [Abstract]
Due in one year or less, Available-for-sale, Amortized Cost	$ 63,773
Due after one year through five years, Available-for-sale, Amortized Cost	99,452
Due after five years through ten years, Available-for-sale, Amortized Cost	16,574
Due after ten years, Available-for-sale, Amortized Cost	12,947
Total debt securities, Amortized Cost	192,746	$ 158,018
Due in one year or less, Available-for-sale, Fair Value	63,803
Due after one year through five years, Available-for-sale, Fair Value	102,937
Due after five years through ten years, Available-for-sale, Fair Value	17,241
Due after ten years, Available-for-sale, Fair Value	13,815
Total debt securities, Fair Value	$ 197,796	$ 159,675

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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