Securities (Securities in a Continuous Unrealized Loss Position) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015 security	Dec. 31, 2014 security
Schedule of Available-for-sale Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months	1
Fair value of securities in a continuous unrealized loss position for less than 12 months	$ 1,975
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	(25)
Number of securities in a continuous unrealized loss position for 12 months or longer	11
Fair value of securities in a continuous unrealized loss position for 12 months or longer	26,287
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	(4,475)
Number of securities in a continuous unrealized loss position total	12
Fair value of securities in a continuous unrealized loss position total	28,262
Unrealized losses of securities in a continuous unrealized loss position total	(4,500)
Obligations of U.S. government-sponsored enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months		3
Fair value of securities in a continuous unrealized loss position for less than 12 months		20,952
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months		(54)
Number of securities in a continuous unrealized loss position for 12 months or longer		0
Fair value of securities in a continuous unrealized loss position for 12 months or longer		0
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer		0
Number of securities in a continuous unrealized loss position total		3
Fair value of securities in a continuous unrealized loss position total		20,952
Unrealized losses of securities in a continuous unrealized loss position total		(54)
Individual name issuer trust preferred debt securities
Schedule of Available-for-sale Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months	0	0
Fair value of securities in a continuous unrealized loss position for less than 12 months	0	0
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	0	0
Number of securities in a continuous unrealized loss position for 12 months or longer	11	11
Fair value of securities in a continuous unrealized loss position for 12 months or longer	26,287	25,774
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	(4,475)	(4,979)
Number of securities in a continuous unrealized loss position total	11	11
Fair value of securities in a continuous unrealized loss position total	26,287	25,774
Unrealized losses of securities in a continuous unrealized loss position total	(4,475)	(4,979)
Corporate bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months	1	0
Fair value of securities in a continuous unrealized loss position for less than 12 months	1,975	0
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	(25)	0
Number of securities in a continuous unrealized loss position for 12 months or longer	0	1
Fair value of securities in a continuous unrealized loss position for 12 months or longer	0	199
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	0	(3)
Number of securities in a continuous unrealized loss position total	1	1
Fair value of securities in a continuous unrealized loss position total	1,975	199
Unrealized losses of securities in a continuous unrealized loss position total	$ (25)	$ (3)