Securities Continuous Unrealized Loss (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 38,700	$ 67,601
Available-for-sale Securities Continuous Unrealized Loss Position Less than 12 Months Aggregate Losses	317	204
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	26,470
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months or Longer Aggregate Losses	0	164
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	38,700	94,071
Available-for-sale Securities Continuous Unrealized Loss Position Aggregate Losses	317	368
US Government and Government Agencies and Authorities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	5,013	24,734
Available-for-sale Securities Continuous Unrealized Loss Position Less than 12 Months Aggregate Losses	19	97
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	4,993
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months or Longer Aggregate Losses	0	1
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	5,013	29,727
Available-for-sale Securities Continuous Unrealized Loss Position Aggregate Losses	19	98
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	30,819	40,126
Available-for-sale Securities Continuous Unrealized Loss Position Less than 12 Months Aggregate Losses	285	98
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	21,477
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months or Longer Aggregate Losses	0	163
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	30,819	61,603
Available-for-sale Securities Continuous Unrealized Loss Position Aggregate Losses	285	261
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	2,868	2,741
Available-for-sale Securities Continuous Unrealized Loss Position Less than 12 Months Aggregate Losses	13	9
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months or Longer Aggregate Losses	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	2,868	2,741
Available-for-sale Securities Continuous Unrealized Loss Position Aggregate Losses	$ 13	$ 9