Investment Securities (Gross Unrealized Losses and Fair Value by Length of Continuous Unrealized Loss Position) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	$ 829	$ 15,060
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	7	271
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	141,639	132,266
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	2,131	3,861
Available-for-sale securities, continuous unrealized loss position, fair value	142,468	147,326
Available-for-sale securities, continuous unrealized loss position, unrealized losses	2,138	4,132
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, fair value	2,967	2,968
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, unrealized losses	33	32
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, fair value	1,487	1,617
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, unrealized losses	11	25
Held-to-maturity securities, continuous unrealized loss position, fair value	4,454	4,585
Held-to-maturity securities, continuous unrealized loss position, unrealized losses	44	57
Mortgage-backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value		13,981
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses		261
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	109,014	99,904
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	1,752	3,220
Available-for-sale securities, continuous unrealized loss position, fair value	109,014	113,885
Available-for-sale securities, continuous unrealized loss position, unrealized losses	1,752	3,481
U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	829	1,079
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	7	10
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	32,625	32,362
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	379	641
Available-for-sale securities, continuous unrealized loss position, fair value	33,454	33,441
Available-for-sale securities, continuous unrealized loss position, unrealized losses	386	651
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, fair value	1,487	1,617
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, unrealized losses	11	25
Held-to-maturity securities, continuous unrealized loss position, fair value	1,487	1,617
Held-to-maturity securities, continuous unrealized loss position, unrealized losses	11	25
Other Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, fair value	2,967	2,968
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, unrealized losses	33	32
Held-to-maturity securities, continuous unrealized loss position, fair value	2,967	2,968
Held-to-maturity securities, continuous unrealized loss position, unrealized losses	$ 33	$ 32