Securities (Schedule of Information Regarding Securities with Unrealized Losses) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Securities in an Unrealized Loss Position for Less than 12 Months
Total temporarily impaired securities Fair Value	$ 75,474	$ 78,141
Total temporarily impaired securities Unrealized Losses	329	1,898
Securities in an Unrealized Loss Position for More than 12 Months
Total temporarily impaired securities Fair Value	37,392	18,556
Total temporarily impaired securities Unrealized Losses	1,299	1,657
Total temporarily impaired securities Fair Value	112,866	96,697
Total temporarily impaired securities Unrealized Losses	1,628	3,555
US Government-sponsored enterprises securities [Member]
Securities in an Unrealized Loss Position for Less than 12 Months
AFS Fair Value	5,489	12,212
AFS Unrealized Losses	11	219
Securities in an Unrealized Loss Position for More than 12 Months
AFS Fair Value	2,953
AFS Unrealized Losses	47
Total temporarily impaired securities Fair Value	8,442	12,212
Total temporarily impaired securities Unrealized Losses	58	219
Mortgage-backed securities [Member]
Securities in an Unrealized Loss Position for Less than 12 Months
AFS Fair Value	69,985	64,937
AFS Unrealized Losses	318	1,675
Securities in an Unrealized Loss Position for More than 12 Months
AFS Fair Value	33,557	17,979
AFS Unrealized Losses	1,104	1,199
Total temporarily impaired securities Fair Value	103,542	82,916
Total temporarily impaired securities Unrealized Losses	1,422	2,874
Corporate bonds [Member]
Securities in an Unrealized Loss Position for Less than 12 Months
AFS Fair Value
AFS Unrealized Losses
Securities in an Unrealized Loss Position for More than 12 Months
AFS Fair Value	865	555
AFS Unrealized Losses	135	445
Total temporarily impaired securities Fair Value	865	555
Total temporarily impaired securities Unrealized Losses	135	445
Equities [Member]
Securities in an Unrealized Loss Position for Less than 12 Months
AFS Fair Value
AFS Unrealized Losses
Securities in an Unrealized Loss Position for More than 12 Months
AFS Fair Value	17	22
AFS Unrealized Losses	13	13
Total temporarily impaired securities Fair Value	17	22
Total temporarily impaired securities Unrealized Losses	13	13
States and local governments [Member]
Securities in an Unrealized Loss Position for Less than 12 Months
HTM Fair Value		992
HTM Unrealized Losses		4
Securities in an Unrealized Loss Position for More than 12 Months
HTM Fair Value
HTM Unrealized Losses
Total temporarily impaired securities Fair Value		992
Total temporarily impaired securities Unrealized Losses		$ 4

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