Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Amortized cost and fair value of investment securities Available-for-sale [Abstract]
Amortized Cost	$ 12,115	$ 10,169
Unrealized Losses	140	50
Securities available for sale, at fair value	11,975	10,119
AFS securities, Number of securities in continuous unrealized loss position less than twelve months	10,964	10,119
U.S. Treasury Securities [Member]
Amortized cost and fair value of investment securities Available-for-sale [Abstract]
Amortized Cost	1,987
Unrealized Losses	14
Securities available for sale, at fair value	1,973
AFS securities, Number of securities in continuous unrealized loss position less than twelve months	1,973
U.S. Government Agency Notes [Member]
Amortized cost and fair value of investment securities Available-for-sale [Abstract]
Amortized Cost	10,128	10,169
Unrealized Losses	126	50
Securities available for sale, at fair value	10,002	10,119
AFS securities, Number of securities in continuous unrealized loss position less than twelve months	$ 8,991	$ 10,119