Investment Securities (Schedule of Fair Value and Unrealized Loss on Investments in a Continuous Unrealized Loss Position) (Details) $ in Thousands	Sep. 30, 2019 USD ($) security	Dec. 31, 2018 USD ($) security
Schedule of Investments [Line Items]
Available-for-sale securities, Less than 12 Months: Number of Securities | security	6	16
Available-for-sale securities, Less than 12 Months: Fair Value	$ 8,640	$ 20,487
Available-for-sale securities, Less than 12 Months: Unrealized Losses	$ 18	$ 190
Available-for-sale securities, 12 Months or More: Number of Securities | security	21	91
Available-for-sale securities, 12 Months or More: Fair Value	$ 23,217	$ 84,999
Available-for-sale securities, 12 Months or More: Unrealized Losses	$ 232	$ 3,935
Available-for-sale securities, Total: Number of Securities | security	27	107
Available-for-sale securities, Total: Fair Value	$ 31,857	$ 105,486
Available-for-sale securities, Total: Unrealized Losses	$ 250	$ 4,125
Held-to-maturity securities, Less than 12 Months: Number of Securities | security	10	38
Held-to-maturity securities, Less than 12 Months: Fair Value	$ 18,686	$ 31,000
Held-to-maturity securities, Less than 12 Months: Unrealized Losses	$ 30	$ 210
Held-to-maturity securities, 12 Months or More: Number of Securities | security	16	115
Held-to-maturity securities, 12 Months or More: Fair Value	$ 16,397	$ 80,743
Held-to-maturity securities, 12 Months or More: Unrealized Losses	$ 109	$ 2,095
Held-to-maturity securities, Total: Number of Securities | security	26	153
Held-to-maturity securities, Total: Fair Value	$ 35,083	$ 111,743
Held-to-maturity securities, Total: Unrealized Losses	$ 139	$ 2,305
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Number of Securities | security	16	54
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Fair Value	$ 27,326	$ 51,487
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Unrealized Losses	$ 48	$ 400
Available-for-sale securities and Held-to-maturity securities,, 12 Months or More: Number of Securities | security	37	206
Available-for-sale securities and Held-to-maturity securities, 12 Months or More: Fair Value	$ 39,614	$ 165,742
Available-for-sale securities and Held-to-maturity securities, 12 Months or More: Unrealized Losses	$ 341	$ 6,030
Available-for-sale securities and Held-to-maturity securities, Total: Number of Securities | security	53	260
Available-for-sale securities and Held-to-maturity securities, Total: Fair Value	$ 66,940	$ 217,229
Available-for-sale securities and Held-to-maturity securities, Total: Unrealized Losses	$ 389	$ 6,430
U.S. Treasury and U.S. government agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, Less than 12 Months: Number of Securities | security	3	0
Available-for-sale securities, Less than 12 Months: Fair Value	$ 6,988
Available-for-sale securities, Less than 12 Months: Unrealized Losses	$ 12
Available-for-sale securities, 12 Months or More: Number of Securities | security	7	21
Available-for-sale securities, 12 Months or More: Fair Value	$ 11,940	$ 38,386
Available-for-sale securities, 12 Months or More: Unrealized Losses	$ 99	$ 1,708
Available-for-sale securities, Total: Number of Securities | security	10	21
Available-for-sale securities, Total: Fair Value	$ 18,928	$ 38,386
Available-for-sale securities, Total: Unrealized Losses	$ 111	$ 1,708
Held-to-maturity securities, Less than 12 Months: Number of Securities | security	3	1
Held-to-maturity securities, Less than 12 Months: Fair Value	$ 7,447	$ 1,985
Held-to-maturity securities, Less than 12 Months: Unrealized Losses	$ 15	$ 10
Held-to-maturity securities, 12 Months or More: Number of Securities | security	1	3
Held-to-maturity securities, 12 Months or More: Fair Value	$ 2,994	$ 8,852
Held-to-maturity securities, 12 Months or More: Unrealized Losses	$ 5	$ 133
Held-to-maturity securities, Total: Number of Securities | security	4	4
Held-to-maturity securities, Total: Fair Value	$ 10,441	$ 10,837
Held-to-maturity securities, Total: Unrealized Losses	$ 20	$ 143
Mortgage-backed U.S. Government Agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, Less than 12 Months: Number of Securities | security	1	11
Available-for-sale securities, Less than 12 Months: Fair Value	$ 627	$ 16,740
Available-for-sale securities, Less than 12 Months: Unrealized Losses	$ 2	$ 163
Available-for-sale securities, 12 Months or More: Number of Securities | security	14	19
Available-for-sale securities, 12 Months or More: Fair Value	$ 11,277	$ 22,093
Available-for-sale securities, 12 Months or More: Unrealized Losses	$ 133	$ 853
Available-for-sale securities, Total: Number of Securities | security	15	30
Available-for-sale securities, Total: Fair Value	$ 11,904	$ 38,833
Available-for-sale securities, Total: Unrealized Losses	$ 135	$ 1,016
Held-to-maturity securities, Less than 12 Months: Number of Securities | security	7	10
Held-to-maturity securities, Less than 12 Months: Fair Value	$ 11,239	$ 16,165
Held-to-maturity securities, Less than 12 Months: Unrealized Losses	$ 15	$ 79
Held-to-maturity securities, 12 Months or More: Number of Securities | security	15	35
Held-to-maturity securities, 12 Months or More: Fair Value	$ 13,403	$ 42,431
Held-to-maturity securities, 12 Months or More: Unrealized Losses	$ 104	$ 1,231
Held-to-maturity securities, Total: Number of Securities | security	22	45
Held-to-maturity securities, Total: Fair Value	$ 24,642	$ 58,596
Held-to-maturity securities, Total: Unrealized Losses	$ 119	$ 1,310
State and political subdivision obligations [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, Less than 12 Months: Number of Securities | security	2	3
Available-for-sale securities, Less than 12 Months: Fair Value	$ 1,025	$ 1,751
Available-for-sale securities, Less than 12 Months: Unrealized Losses	$ 4	$ 23
Available-for-sale securities, 12 Months or More: Number of Securities | security	0	51
Available-for-sale securities, 12 Months or More: Fair Value		$ 24,520
Available-for-sale securities, 12 Months or More: Unrealized Losses		$ 1,374
Available-for-sale securities, Total: Number of Securities | security	2	54
Available-for-sale securities, Total: Fair Value	$ 1,025	$ 26,271
Available-for-sale securities, Total: Unrealized Losses	$ 4	$ 1,397
Held-to-maturity securities, Less than 12 Months: Number of Securities | security		26
Held-to-maturity securities, Less than 12 Months: Fair Value		$ 11,321
Held-to-maturity securities, Less than 12 Months: Unrealized Losses		$ 111
Held-to-maturity securities, 12 Months or More: Number of Securities | security		77
Held-to-maturity securities, 12 Months or More: Fair Value		$ 29,460
Held-to-maturity securities, 12 Months or More: Unrealized Losses		$ 731
Held-to-maturity securities, Total: Number of Securities | security		103
Held-to-maturity securities, Total: Fair Value		$ 40,781
Held-to-maturity securities, Total: Unrealized Losses		$ 842
Corporate debt securities [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, Less than 12 Months: Number of Securities | security		2
Available-for-sale securities, Less than 12 Months: Fair Value		$ 1,996
Available-for-sale securities, Less than 12 Months: Unrealized Losses		$ 4
Available-for-sale securities, 12 Months or More: Number of Securities | security		0
Available-for-sale securities, Total: Number of Securities | security		2
Available-for-sale securities, Total: Fair Value		$ 1,996
Available-for-sale securities, Total: Unrealized Losses		$ 4
Held-to-maturity securities, Less than 12 Months: Number of Securities | security		1
Held-to-maturity securities, Less than 12 Months: Fair Value		$ 1,529
Held-to-maturity securities, Less than 12 Months: Unrealized Losses		$ 10
Held-to-maturity securities, 12 Months or More: Number of Securities | security		0
Held-to-maturity securities, Total: Number of Securities | security		1
Held-to-maturity securities, Total: Fair Value		$ 1,529
Held-to-maturity securities, Total: Unrealized Losses		$ 10