Investments (Amortized Cost and Fair Values Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Schedule of Investments [Line Items]
Amortized Cost: Due after one year through five years	$ 4,434
Amortized Cost: Due after five years through ten years	24,821
Amortized Cost: Due after ten years	65,371
Available for sale debt maturities amortized cost sub Total	94,626
Fair Value: Due after one year through five years	4,555
Fair Value: Due after five years through ten years	25,745
Fair Value: Due after ten years	59,920
Available for sale debt maturities fair value sub total	90,220
Available-for-sale Securities, Amortized Cost Basis	156,455	$ 135,008
Available-for-sale Securities	153,161	131,305
Amortized Cost: Due after ten years, Held to maturity	20,759
Fair Value: Due after ten years, Held to maturity	26,038
Held-to-maturity Securities	69,221	93,979
Held-to-maturity securities, fair value	76,370	100,656
Residential mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	13,037	4,917
Available-for-sale Securities	13,163	4,900
Held-to-maturity Securities	34,868	42,939
Held-to-maturity securities, fair value	36,025	43,253
Commercial mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	33,566	27,634
Available-for-sale Securities	34,160	27,764
Held-to-maturity Securities	11,773	15,521
Held-to-maturity securities, fair value	12,388	15,865
Collateralized mortgage obligations [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	15,226	29,903
Available-for-sale Securities	15,618	29,923
Held-to-maturity Securities	1,821	3,140
Held-to-maturity securities, fair value	$ 1,919	$ 3,143

Available For Sale Debt Maturities Amortized Cost Sub Total

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