Fair Value Measurements (Fair Value, by Balance Sheet Grouping) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014		Mar. 31, 2014	Dec. 31, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value	$ 276,096			$ 194,481
Investment Securities held-to-maturity, estimated fair value (in dollars)	155,435			1,342
MSRs	2,239		2,228	2,232	1,786	1,546	1,308
Interest rate swap derivatives	2,193	[1]
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value	0			0
Interest rate swap derivatives	0
Interest rate swap derivatives	0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value	276,096			194,481
Interest rate swap derivatives	2,193
Interest rate swap derivatives	2,193
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value	0			0
Interest rate swap derivatives	0
Interest rate swap derivatives	0
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	164,272			81,849
Estimated fair value	276,096			194,481
Investment Securities held-to-maturity, estimated fair value (in dollars)	154,717			1,320
FHLB stock	26,178			9,913
Loans held-for-sale	4,944			10,359
Loans, net	1,372,909			973,618
BOLI	52,895			36,567
MSRs	2,239			2,232
Interest rate swap derivatives	2,193			0
Deposits	1,942,035			1,167,320
FHLB borrowings	0			27,000
Interest rate swap derivatives	2,193			0
Fair Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	164,272			81,849
Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated fair value	276,096			194,481
Investment Securities held-to-maturity, estimated fair value (in dollars)	155,435			1,342
FHLB stock	26,178			9,913
Loans held-for-sale	4,944			10,359
Interest rate swap derivatives	2,193			0
Deposits	1,943,055			1,167,532
FHLB borrowings	0			27,000
Interest rate swap derivatives	2,193			0
Fair Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, net	1,370,452			977,142
BOLI	52,895			36,567
MSRs	$ 2,801			$ 2,790

[1] Included in Other Assets on the Consolidated Balance Sheet.