Loans (Schedule of Accretable Yield, or Income Expected to be Collected) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at January 1	$ 2,734	$ 2,521
New Loans Purchased	0	0
Accretion of Income	(81)	(42)
Reclassifications from Non-accretable Difference	86	311
Charge-off of Accretable Yield	0	0
Balance at March 31	$ 2,739	$ 2,790