Investment Securities (Details 2) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Available-for-Sale Amortized Cost
Due in one year or less	$ 0
Due after one year through five years	9,611
Due after five years through ten years	500
Due after ten years	1,000
Sub-total	11,111
Totals	17,384	$ 18,521
Fair Value Available-for-Sale
Due in one year or less	0
Due after one year through five years	9,392
Due after five years through ten years	497
Due after ten years	966
Sub-total	10,855
Totals	17,027	18,313
Mortgage-backed securities - residential
Available-for-Sale Amortized Cost
Totals	6,273	7,909
Fair Value Available-for-Sale
Totals	$ 6,172	$ 7,843