Securities (Other Investments) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Other investments	$ 14,728	$ 14,794
Federal Reserve Bank Stock [Member]
Debt Securities, Available-for-sale [Line Items]
Other investments	8,460	8,606
Investment in Federal Home Loan Bank Stock [Member]
Debt Securities, Available-for-sale [Line Items]
Other investments	5,918	5,838
First National Bankers Bank Stock [Member]
Debt Securities, Available-for-sale [Line Items]
Other investments	$ 350	$ 350