Investment Securities (Unrealized Gain (Loss) on Investments) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
Schedule Of Available-For-Sale and Held-to-Maturity Securities Table [Line Items]
Amortized cost	$ 272,703		$ 194,538
Gross unrealized gains	5,504		4,024
Gross unrealized losses	(2,111)		(4,081)
Estimated fair value	276,096		194,481
Amortized cost	154,717		1,320
Gross unrealized gains	805		22
Gross unrealized losses	(87)		0
Estimated fair value	155,435		1,342
U.S. Agency mortgage-backed securities (MBS)
Schedule Of Available-For-Sale and Held-to-Maturity Securities Table [Line Items]
Amortized cost	244,996	[1]	171,853	[1]
Gross unrealized gains	3,870	[1]	3,125	[1]
Gross unrealized losses	(1,782)	[1]	(3,646)	[1]
Estimated fair value	247,084	[1]	171,332	[1]
Amortized cost	111,893
Gross unrealized gains	616
Gross unrealized losses	(21)
Estimated fair value	112,488
Non-Agency MBS
Schedule Of Available-For-Sale and Held-to-Maturity Securities Table [Line Items]
Amortized cost	12,309		13,500
Gross unrealized gains	64		11
Gross unrealized losses	(287)		(414)
Estimated fair value	12,086		13,097
U.S. Agency asset-backed securities
Schedule Of Available-For-Sale and Held-to-Maturity Securities Table [Line Items]
Amortized cost	8,424		8,683
Gross unrealized gains	863		887
Gross unrealized losses	(42)		(21)
Estimated fair value	9,245		9,549
Corporate securities
Schedule Of Available-For-Sale and Held-to-Maturity Securities Table [Line Items]
Amortized cost	6,466
Gross unrealized gains	696
Gross unrealized losses	0
Estimated fair value	7,162
Mutual fund
Schedule Of Available-For-Sale and Held-to-Maturity Securities Table [Line Items]
Amortized cost	508		502
Gross unrealized gains	11		1
Gross unrealized losses	0		0
Estimated fair value	519		503
Tax credit investments
Schedule Of Available-For-Sale and Held-to-Maturity Securities Table [Line Items]
Amortized cost	585		614
Gross unrealized gains	0		0
Gross unrealized losses	0		0
Estimated fair value	585		614
Obligations of state and political subdivisions
Schedule Of Available-For-Sale and Held-to-Maturity Securities Table [Line Items]
Amortized cost	42,239		706
Gross unrealized gains	189		22
Gross unrealized losses	(66)		0
Estimated fair value	42,362		728
Private Label Mortgage Backed Securities
Schedule Of Available-For-Sale and Held-to-Maturity Securities Table [Line Items]
Estimated fair value	$ 10,400		$ 11,300

[1] U.S. Agency MBS include private label MBS of approximately $10.4 million and $11.3 million at June 30, 2014 and December 31, 2013, respectively, which are supported by FHA/VA collateral.