Investment Securities - Summary Of Interest Income On Available-For-Sale Investment Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	$ 3,073	$ 2,651	$ 2,035
Total tax-exempt interest income	320	391	568
Total interest income	3,393	3,042	2,603
U.S. Treasury and government sponsored entities
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	2,378	1,769	898
U.S. Agency Mortgage-backed Securities
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	25	25	1
Other
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	670	857	1,136
Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Total tax-exempt interest income	$ 320	$ 391	$ 568