Fair Value of Financial Instruments (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Fair Value of Financial Instruments (Textual) [Abstract]
Embedded Derivative, Gain (Loss) on Embedded Derivative Total	$ (2,366)	$ (676)
Level 3 [Member]
Fair Value of Financial Instruments (Textual) [Abstract]
Embedded Derivative, Gain (Loss) on Embedded Derivative Total	$ (2,308)	$ (674)
Percentage Of Invested Assets In Total Investment Portfolio Level3 Recurring	3.10%