Investment Securities (Unrealized Gain (Loss) on Investments) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Schedule of Investments [Line Items]
Available-for-sale debt securities, Amortized Cost	$ 27,396	$ 37,170
Available-for-sale debt securities, Unrealized Gains	46	22
Available-for-sale debt securities, Unrealized Losses	22	183
Available-for-sale debt securities, Fair Value	27,420	37,009
Held-to-maturity debt securities, Amortized Cost	167,963	136,477
Held-to-maturity debt securities, Unrealized Gains	2,556	1,334
Held-to-maturity debt securities, Unrealized Losses	120	335
Held-to-maturity debt securities, Fair Value	170,399	137,476
Available-for-sale securities and Held-to-maturity debt securities, Amortized Cost	195,359	173,647
Available-for-sale securities and Held-to-maturity debt securities, Unrealized Gains	2,602	1,356
Available-for-sale securities and Held-to-maturity debt securities, Unrealized Losses	142	518
Available-for-sale securities and Held-to-maturity debt securities, Fair Value	197,819	174,485
U.S. Government Agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities, Amortized Cost		22,894
Available-for-sale debt securities, Unrealized Gains		6
Available-for-sale debt securities, Unrealized Losses		70
Available-for-sale debt securities, Fair Value		22,830
U.S. Treasury and U.S. government agencies [Member]
Schedule of Investments [Line Items]
Held-to-maturity debt securities, Amortized Cost	68,321	50,210
Held-to-maturity debt securities, Unrealized Gains	288	46
Held-to-maturity debt securities, Unrealized Losses	18	220
Held-to-maturity debt securities, Fair Value	68,591	50,036
Mortgage-backed U.S. Government Agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities, Amortized Cost	3,671	12,996
Available-for-sale debt securities, Unrealized Gains	6	7
Available-for-sale debt securities, Unrealized Losses	15	113
Available-for-sale debt securities, Fair Value	3,662	12,890
Held-to-maturity debt securities, Amortized Cost	44,940	42,098
Held-to-maturity debt securities, Unrealized Gains	916	95
Held-to-maturity debt securities, Unrealized Losses	24	102
Held-to-maturity debt securities, Fair Value	45,832	42,091
State and political subdivision obligations [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities, Amortized Cost	16,092	30
Available-for-sale debt securities, Unrealized Gains	27
Available-for-sale debt securities, Unrealized Losses	1
Available-for-sale debt securities, Fair Value	16,118	30
Held-to-maturity debt securities, Amortized Cost	50,603	44,169
Held-to-maturity debt securities, Unrealized Gains	1,295	1,193
Held-to-maturity debt securities, Unrealized Losses	78	13
Held-to-maturity debt securities, Fair Value	51,820	45,349
Corporate debt securities [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities, Amortized Cost	7,633	1,250
Available-for-sale debt securities, Unrealized Gains	13	9
Available-for-sale debt securities, Unrealized Losses	6
Available-for-sale debt securities, Fair Value	7,640	$ 1,259
Held-to-maturity debt securities, Amortized Cost	4,099
Held-to-maturity debt securities, Unrealized Gains	57
Held-to-maturity debt securities, Fair Value	$ 4,156

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Available-for-sale securities and held-to-maturity gross unrealized gain.

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Available-for-sale securities and held-to-maturity gross unrealized losses.

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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