Securities Continuous Unrealized Loss (Details) - USD ($) $ in Thousands	Dec. 31, 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	$ 59,849	$ 67,601
Available-for-sale Securities Continuous Unrealized Loss Position Less Than 12 Months Accumulated Loss	242	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 Accumulated Loss	0	164
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	59,849	94,071
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Losses	242	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	15,416	24,734
Available-for-sale Securities Continuous Unrealized Loss Position Less Than 12 Months Accumulated Loss	98	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 Accumulated Loss	0	1
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	15,416	29,727
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Losses	98	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	41,488	40,126
Available-for-sale Securities Continuous Unrealized Loss Position Less Than 12 Months Accumulated Loss	133	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 Accumulated Loss	0	163
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	41,488	61,603
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Losses	133	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	2,945	2,741
Available-for-sale Securities Continuous Unrealized Loss Position Less Than 12 Months Accumulated Loss	11	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 Accumulated Loss	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	2,945	2,741
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Losses	$ 11	$ 9