Investment Securities (Schedule of Fair Value and Unrealized Loss on Investments in a Continuous Unrealized Loss Position) (Details) $ in Thousands	Jun. 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	2	16
Available-for-sale securities, Less than 12 Months: Fair Value	$ 4,473	$ 20,487
Available-for-sale securities, Less than 12 Months: Unrealized Losses	$ 19	$ 190
Available-for-sale securities, 12 Months or More: Number of Securities | security	46	91
Available-for-sale securities, 12 Months or More: Fair Value	$ 46,502	$ 84,999
Available-for-sale securities, 12 Months or More: Unrealized Losses	$ 437	$ 3,935
Available-for-sale securities, Total: Number of Securities | security	48	107
Available-for-sale securities, Total: Fair Value	$ 50,975	$ 105,486
Available-for-sale securities, Total: Unrealized Losses	$ 456	$ 4,125
Held-to-maturity securities, Less than 12 Months: Number of Securities | security	1	38
Held-to-maturity securities, Less than 12 Months: Fair Value	$ 1,522	$ 31,000
Held-to-maturity securities, Less than 12 Months: Unrealized Losses	$ 9	$ 210
Held-to-maturity securities, 12 Months or More: Number of Securities | security	32	115
Held-to-maturity securities, 12 Months or More: Fair Value	$ 38,969	$ 80,743
Held-to-maturity securities, 12 Months or More: Unrealized Losses	$ 223	$ 2,095
Held-to-maturity securities, Total: Number of Securities | security	33	153
Held-to-maturity securities, Total: Fair Value	$ 40,491	$ 111,743
Held-to-maturity securities, Total: Unrealized Losses	$ 232	$ 2,305
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Number of Securities | security	3	54
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Fair Value	$ 5,995	$ 51,487
Available-for-sale securities and Held-to-maturity securities, Less than 12 Months: Unrealized Losses	$ 28	$ 400
Available-for-sale securities and Held-to-maturity securities,, 12 Months or More: Number of Securities | security	78	206
Available-for-sale securities and Held-to-maturity securities, 12 Months or More: Fair Value	$ 85,471	$ 165,742
Available-for-sale securities and Held-to-maturity securities, 12 Months or More: Unrealized Losses	$ 660	$ 6,030
Available-for-sale securities and Held-to-maturity securities, Total: Number of Securities | security	81	260
Available-for-sale securities and Held-to-maturity securities, Total: Fair Value	$ 91,466	$ 217,229
Available-for-sale securities and Held-to-maturity securities, Total: Unrealized Losses	$ 688	$ 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	2	0
Available-for-sale securities, Less than 12 Months: Fair Value	$ 4,473
Available-for-sale securities, Less than 12 Months: Unrealized Losses	$ 19
Available-for-sale securities, 12 Months or More: Number of Securities | security	15	21
Available-for-sale securities, 12 Months or More: Fair Value	$ 25,443	$ 38,386
Available-for-sale securities, 12 Months or More: Unrealized Losses	$ 177	$ 1,708
Available-for-sale securities, Total: Number of Securities | security	17	21
Available-for-sale securities, Total: Fair Value	$ 29,916	$ 38,386
Available-for-sale securities, Total: Unrealized Losses	$ 196	$ 1,708
Held-to-maturity securities, Less than 12 Months: Number of Securities | security	0	1
Held-to-maturity securities, Less than 12 Months: Fair Value		$ 1,985
Held-to-maturity securities, Less than 12 Months: Unrealized Losses		$ 10
Held-to-maturity securities, 12 Months or More: Number of Securities | security	2	3
Held-to-maturity securities, 12 Months or More: Fair Value	$ 6,002	$ 8,852
Held-to-maturity securities, 12 Months or More: Unrealized Losses	$ 16	$ 133
Held-to-maturity securities, Total: Number of Securities | security	2	4
Held-to-maturity securities, Total: Fair Value	$ 6,002	$ 10,837
Held-to-maturity securities, Total: Unrealized Losses	$ 16	$ 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	0	11
Available-for-sale securities, Less than 12 Months: Fair Value		$ 16,740
Available-for-sale securities, Less than 12 Months: Unrealized Losses		$ 163
Available-for-sale securities, 12 Months or More: Number of Securities | security	15	19
Available-for-sale securities, 12 Months or More: Fair Value	$ 12,541	$ 22,093
Available-for-sale securities, 12 Months or More: Unrealized Losses	$ 187	$ 853
Available-for-sale securities, Total: Number of Securities | security	15	30
Available-for-sale securities, Total: Fair Value	$ 12,541	$ 38,833
Available-for-sale securities, Total: Unrealized Losses	$ 187	$ 1,016
Held-to-maturity securities, Less than 12 Months: Number of Securities | security	0	10
Held-to-maturity securities, Less than 12 Months: Fair Value		$ 16,165
Held-to-maturity securities, Less than 12 Months: Unrealized Losses		$ 79
Held-to-maturity securities, 12 Months or More: Number of Securities | security	29	35
Held-to-maturity securities, 12 Months or More: Fair Value	$ 32,464	$ 42,431
Held-to-maturity securities, 12 Months or More: Unrealized Losses	$ 206	$ 1,231
Held-to-maturity securities, Total: Number of Securities | security	29	45
Held-to-maturity securities, Total: Fair Value	$ 32,464	$ 58,596
Held-to-maturity securities, Total: Unrealized Losses	$ 206	$ 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	0	3
Available-for-sale securities, Less than 12 Months: Fair Value		$ 1,751
Available-for-sale securities, Less than 12 Months: Unrealized Losses		$ 23
Available-for-sale securities, 12 Months or More: Number of Securities | security	16	51
Available-for-sale securities, 12 Months or More: Fair Value	$ 8,518	$ 24,520
Available-for-sale securities, 12 Months or More: Unrealized Losses	$ 73	$ 1,374
Available-for-sale securities, Total: Number of Securities | security	16	54
Available-for-sale securities, Total: Fair Value	$ 8,518	$ 26,271
Available-for-sale securities, Total: Unrealized Losses	$ 73	$ 1,397
Held-to-maturity securities, Less than 12 Months: Number of Securities | security	0	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	1	77
Held-to-maturity securities, 12 Months or More: Fair Value	$ 503	$ 29,460
Held-to-maturity securities, 12 Months or More: Unrealized Losses	$ 1	$ 731
Held-to-maturity securities, Total: Number of Securities | security	1	103
Held-to-maturity securities, Total: Fair Value	$ 503	$ 40,781
Held-to-maturity securities, Total: Unrealized Losses	$ 1	$ 842
Corporate debt securities [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, Less than 12 Months: Number of Securities | security	0	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	0
Available-for-sale securities, Total: Number of Securities | security	0	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	1
Held-to-maturity securities, Less than 12 Months: Fair Value	$ 1,522	$ 1,529
Held-to-maturity securities, Less than 12 Months: Unrealized Losses	$ 9	$ 10
Held-to-maturity securities, 12 Months or More: Number of Securities | security	0	0
Held-to-maturity securities, Total: Number of Securities | security	1	1
Held-to-maturity securities, Total: Fair Value	$ 1,522	$ 1,529
Held-to-maturity securities, Total: Unrealized Losses	$ 9	$ 10