Investment Securities - Summary Of Investment Security Carrying and Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Held-to-maturity Securities [Line Items]
Investment securities held to maturity	$ 902	$ 903
Gross Unrealized Gains	51	56
Gross Unrealized Losses	0	0
Fair Value	953	959
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	295,659	291,759
Gross Unrealized Gains	969	333
Gross Unrealized Losses	266	979
Fair Value	296,362	291,113
U.S. Treasury and government sponsored entities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	239,893	238,116
Gross Unrealized Gains	805	150
Gross Unrealized Losses	29	830
Fair Value	240,669	237,436
Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	10,016	10,227
Gross Unrealized Gains	94	117
Gross Unrealized Losses	18	18
Fair Value	10,092	10,326
U.S. Agency mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	7	818
Gross Unrealized Gains	0	1
Gross Unrealized Losses	0	10
Fair Value	7	809
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	40,822	39,049
Gross Unrealized Gains	52	57
Gross Unrealized Losses	162	88
Fair Value	40,712	39,018
Preferred stock
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	4,921	3,549
Gross Unrealized Gains	18	8
Gross Unrealized Losses	57	33
Fair Value	4,882	3,524
Municipal securities
Schedule of Held-to-maturity Securities [Line Items]
Investment securities held to maturity	902	903
Gross Unrealized Gains	51	56
Gross Unrealized Losses	0	0
Fair Value	$ 953	$ 959