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Investment Securities (Gross Unrealized Losses and Fair Values of Securities) (Details) $ in Thousands	Dec. 31, 2019 USD ($) security	Dec. 31, 2018 USD ($) security
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 34,430	$ 9,529
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 134	$ 487
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments | security	6	10
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 70,605	$ 122,608
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 4,266	$ 6,127
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	16	34
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 2,722	$ 3,605
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 6	$ 51
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments | security	3	2
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 9,486	$ 54,908
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 149	$ 1,556
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments | security	12	32
US government agencies [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 24,907
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 80
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments | security	3
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 14,987	$ 29,026
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 13	$ 974
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	3	5
Residential mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 4,900
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 17
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments | security	1
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 2,722	$ 3,605
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 6	$ 51
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments | security	3	2
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 9,486	$ 41,448
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 149	$ 1,236
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments | security	12	29
Commercial mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 4,623
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 37
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments | security	2
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 5,793	$ 37,752
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 55	$ 1,261
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	3	8
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		$ 7,656
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses		$ 68
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments | security		1
Collateralized mortgage obligations [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 232
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses		$ 1
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments | security		1
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 35,472	$ 35,472
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 109	$ 964
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	1	8
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		$ 3,605
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses		$ 156
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments | security		1
Obligations of states and political subdivisions [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 3,310
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses		$ 48
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments | security		5
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		$ 11,068
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses		$ 285
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security		8
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		$ 2,199
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses		$ 96
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments | security		1
Collateralized debt obligations [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 5,987
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses		$ 438
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments | security		4
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 14,353	$ 9,290
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 4,089	$ 2,643
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	9	5

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