Investments (Amortized Cost and Fair Values Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Schedule of Investments [Line Items]
Amortized Cost: Due after one year through five years	$ 4,404
Amortized Cost: Due after five years through ten years	10,057
Amortized Cost: Due after ten years	69,054
Available For Sale Debt Maturities Amortized Cost Sub Total	83,515
Fair Value: Due after one year through five years	4,466
Fair Value: Due after five years through ten years	10,198
Fair Value: Due after ten years	65,958
Available For Sale Debt Maturities Fair Value Sub Total	80,622
Available-for-sale Securities, Amortized Cost Basis	241,197	$ 230,464
Available-for-sale Securities	235,564	226,885
Amortized Cost: Due after ten years, Held to maturity	20,169
Fair Value: Due after ten years, Held to maturity	29,074
Held-to-maturity Securities	61,979	68,263
Held-to-maturity securities, fair value	71,707	77,612
Residential mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	30,936	22,999
Available-for-sale Securities	30,354	22,899
Held-to-maturity Securities	32,113	34,597
Held-to-maturity securities, fair value	32,601	35,732
Commercial mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	55,980	32,549
Available-for-sale Securities	55,509	33,042
Held-to-maturity Securities	9,697	11,716
Held-to-maturity securities, fair value	10,032	12,303
Collateralized mortgage obligations [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	70,766	70,372
Available-for-sale Securities	$ 69,079	70,637
Held-to-maturity Securities		1,348
Held-to-maturity securities, fair value		$ 1,406