Investments (Amortized Cost and Fair Values Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Schedule of Investments [Line Items]
Amortized Cost: Due in one year or less	$ 225
Amortized Cost: Due after one year through five years	16,763
Amortized Cost: Due after five years through ten years	17,968
Amortized Cost: Due after ten years	27,810
Amortized Cost: Sub Total	62,766
Fair Value: Due in one year or less	225
Fair Value: Due after one year through five years	16,718
Fair Value: Due after five years through ten years	17,876
Fair Value: Due after ten years	24,517
Available For Sale Debt Maturities Fair Value Sub Total	59,336
Available-for-sale Securities, Amortized Cost Basis	139,263	$ 144,123
Available-for-sale Securities	135,809	137,641
Amortized Cost: Due after one year through five years, Held to maturity	16,090
Amortized Cost: Due after ten years, Held to maturity	14,840
Amortized Cost: Total, Held to maturity	30,930
Fair Value: Due after one year through five years, Held to maturity	16,714
Fair Value: Due after ten years, Held to maturity	18,894
Fair Value: Total, Held to maturity	35,608
Held-to-maturity securities	97,499	94,010
Held-to-maturity securities, fair value	102,503	93,760
Residential mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Held-to-maturity securities	47,320	46,491
Held-to-maturity securities, fair value	47,212	45,210
Commercial mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	42,487	39,013
Available-for-sale Securities	42,346	37,752
Held-to-maturity securities	15,672	15,821
Held-to-maturity securities, fair value	16,101	15,828
Collateralized mortgage obligations [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	34,010	36,669
Available-for-sale Securities	34,127	35,704
Held-to-maturity securities	3,577	3,761
Held-to-maturity securities, fair value	$ 3,582	$ 3,605

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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