Investment Securities (Investments Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Investment Securities [Abstract]
Held to Maturity, Due after one year through five years, Amortized Cost	$ 22,695
Held to Maturity, Due after five years through ten years, Amortized Cost	30,108
Held to Maturity, Due after ten years, Amortized Cost	20,986
Held-to-maturity Securities, Amortized Cost	73,789	$ 67,829
Held to Maturity, Due after one year through five years, Fair Value	23,572
Held to Maturity, Due after five years through ten years, Fair Value	30,460
Held to Maturity, Due after ten years, Fair Value	21,079
Held-to-maturity, Total investment securities, Fair Value	75,111	68,431
Available for Sale, Due in one year or less, Amortized Cost	12,751
Available for Sale, Due after one year through five years, Amortized Cost	58,429
Available for Sale, Due after five years through ten years, Amortized Cost	7,295
Available for Sale, Due after ten years, Amortized Cost	43,017
Available-for-sale Securities, Amortized Cost	121,492	153,559
Available for Sale, Due in one year or less, Fair Value	12,732
Available for Sale, Due after one year through five years, Fair Value	58,504
Available for Sale, Due after five years through ten years, Fair Value	7,336
Available for Sale, Due after ten years, Fair Value	43,116
Available for Sale, Total investment securities, Fair Value	$ 121,688	$ 152,379