Securities (Schedule of Unrealized Losses) (Details) $ in Thousands	Sep. 30, 2021 USD ($) security	Dec. 31, 2020 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Less Than 12 Months | security	57	11
Fair Value, Less Than 12 Months	$ 260,292	$ 65,503
Unrealized Losses, Less Than 12 Months	$ (4,833)	$ (242)
Number of Securities, 12 Months or More | security	0	0
Fair Value, 12 Months or More	$ 0	$ 0
Unrealized Losses, 12 Months or More	$ 0	$ 0
Number of Securities, Total | security	57	11
Fair Value, Total	$ 260,292	$ 65,503
Unrealized Losses, Total	$ (4,833)	$ (242)
Obligations of U.S. Government Agencies and Corporations [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Less Than 12 Months | security	8	3
Fair Value, Less Than 12 Months	$ 40,972	$ 18,948
Unrealized Losses, Less Than 12 Months	$ (894)	$ (52)
Number of Securities, 12 Months or More | security	0	0
Fair Value, 12 Months or More	$ 0	$ 0
Unrealized Losses, 12 Months or More	$ 0	$ 0
Number of Securities, Total | security	8	3
Fair Value, Total	$ 40,972	$ 18,948
Unrealized Losses, Total	$ (894)	$ (52)
Obligations of State and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Less Than 12 Months | security	6
Fair Value, Less Than 12 Months	$ 5,256
Unrealized Losses, Less Than 12 Months	$ (103)
Number of Securities, 12 Months or More | security	0
Fair Value, 12 Months or More	$ 0
Unrealized Losses, 12 Months or More	$ 0
Number of Securities, Total | security	6
Fair Value, Total	$ 5,256
Unrealized Losses, Total	$ (103)
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Less Than 12 Months | security	5	1
Fair Value, Less Than 12 Months	$ 9,281	$ 2,972
Unrealized Losses, Less Than 12 Months	$ (103)	$ (59)
Number of Securities, 12 Months or More | security	0	0
Fair Value, 12 Months or More	$ 0	$ 0
Unrealized Losses, 12 Months or More	$ 0	$ 0
Number of Securities, Total | security	5	1
Fair Value, Total	$ 9,281	$ 2,972
Unrealized Losses, Total	$ (103)	$ (59)
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of Securities, Less Than 12 Months | security	38	7
Fair Value, Less Than 12 Months	$ 204,783	$ 43,583
Unrealized Losses, Less Than 12 Months	$ (3,733)	$ (131)
Number of Securities, 12 Months or More | security	0	0
Fair Value, 12 Months or More	$ 0	$ 0
Unrealized Losses, 12 Months or More	$ 0	$ 0
Number of Securities, Total | security	38	7
Fair Value, Total	$ 204,783	$ 43,583
Unrealized Losses, Total	$ (3,733)	$ (131)