Investment Securities - Summary Of Interest Income On Available-For-Sale Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	$ 905	$ 800
Total tax-exempt interest income	75	85
Total interest income	980	885
U.S. Treasury and government sponsored entities
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	679	618
U.S. Agency mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	4	7
Other
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	222	175
Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Total tax-exempt interest income	$ 75	$ 85