Securities (Schedule of Unrealized Loss on Investments, AFS) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Less than 12 months, fair value	$ 30,095	$ 24,571
More than 12 months, fair value	54,846	38,428
Fair value	84,941	62,999
Less than 12 months, unrealized loss	163	328
More than 12 months, unrealized loss	2,594	1,354
Unrealized loss	2,757	1,682
Asset-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Less than 12 months, fair value	30,095	24,571
More than 12 months, fair value	54,846	38,428
Fair value	84,941	62,999
Less than 12 months, unrealized loss	163	328
More than 12 months, unrealized loss	2,594	1,354
Unrealized loss	$ 2,757	$ 1,682