Securities - Schedule of amortized cost and fair value of the investment securities portfolios by contractual maturity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Amortized Cost
One to five years	$ 1,946
Residential mortgage-backed	11,796
Total	13,742
Fair Value
One to five years	1,973
Residential mortgage-backed	12,167
Total	14,140
Securities pledged	719	$ 1,200
Securities of any one issuer, other than U.S. Government, greater than 10% of shareholders equity	$ 0	0
Shareholders equity representing a concentration risk for any one securities investment (as a percent)	10.00%
Sales of securities	$ 0	$ 0