Investments Securities (Details 2) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Amounts maturing:
One year or less, Amortized Cost	$ 25,498	$ 33,516
After one through five years, Amortized Cost	8,505	7,508
After five through ten years, Amortized Cost	64	81
After ten years, Amortized Cost	500	0
Amortized Cost	34,567	41,105
One year or less, Estimated Fair value	25,498	33,506
After one through five years, Estimated Fair value	8,515	7,487
After five through ten years, Estimated Fair value	67	86
After ten years, Estimated Fair value	501	0
Estimated Fair Value	$ 34,581	$ 41,079