Investments (Gross Unrealized Losses And Fair Value Of Investments) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Schedule of Investments [Line Items]
Securities available-for-sale, Less Than Twelve Months, Estimated Fair Value	$ 73,478	$ 138,967
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	245	1,637
Securities available-for-sale, Twelve Months or Greater, Estimated Fair Value	4,135	36,185
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	457	584
Securities available-for-sale, Total, Estimated Fair Value	77,613	175,152
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	702	2,221
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value		0
Obligations of states and political subdivisions
Schedule of Investments [Line Items]
Securities available-for-sale, Less Than Twelve Months, Estimated Fair Value	10,578	230
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	139	0
Securities available-for-sale, Twelve Months or Greater, Estimated Fair Value	0	1,439
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	6
Securities available-for-sale, Total, Estimated Fair Value	10,578	1,669
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	139	6
U.S. Government agencies
Schedule of Investments [Line Items]
Securities available-for-sale, Less Than Twelve Months, Estimated Fair Value	62,412	123,289
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	105	1,247
Securities available-for-sale, Twelve Months or Greater, Estimated Fair Value	35	34,746
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	578
Securities available-for-sale, Total, Estimated Fair Value	62,447	158,035
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	105	1,825
Trust preferred securities
Schedule of Investments [Line Items]
Securities available-for-sale, Less Than Twelve Months, Estimated Fair Value	0	4,200
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	347
Securities available-for-sale, Twelve Months or Greater, Estimated Fair Value	4,100	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	457	0
Securities available-for-sale, Total, Estimated Fair Value	4,100	4,200
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	457	347
Corporate securities
Schedule of Investments [Line Items]
Securities available-for-sale, Less Than Twelve Months, Estimated Fair Value	488	11,248
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	1	43
Securities available-for-sale, Twelve Months or Greater, Estimated Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Securities available-for-sale, Total, Estimated Fair Value	488	11,248
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ 1	$ 43