Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Series A Preferred stock converted		570,300	0
Warrant derivative liability reclassified to equity		$ 17,478	$ 11
Series A Preferred Stock [Member]
Series A Preferred stock converted	45,845	570,300