Fair Value Measurements (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Fair value - December 31, 2015	$ 1,900
Fair value - September 30, 2016	1,013	$ 1,900
Tribute Warrant [Member]
Fair value - December 31, 2015	1,900	679
Issuances		4,688
Settlements	(1,405)
Change in fair value	518	(3,467)
Fair value - September 30, 2016	$ 1,013	$ 1,900