Equity (Details 7) shares in Thousands	6 Months Ended
	Jun. 30, 2016 $ / shares shares	Jun. 30, 2015 $ / shares shares
Class Of Warrant Or Right Number Of Warrants Or Rights Roll Forward
Number of Warrants Outstanding at beginning of period | shares	205	171
Number of warrants issued | shares	1,551	22
Number Of Warrants Or Rights Expired | shares		(13)
Number of Warrants Outstanding at end of period | shares	1,756	180
Number of Warrants Or Rights Exercisable at end of period | shares	1,756	180
Excercise Price of Warrants Outstanding at beginning of period | $ / shares	$ 35.51	$ 36.13
Exercise Price Of Warrants Issued | $ / shares	2.18	28.13
Exercise Price Of Warrants Expired | $ / shares		62.50
Excercise Price of Warrants Outstanding at end of period | $ / shares	$ 5.27	$ 34.63
Exercise Price Of WarrantsExercisable at end of period | $ / shares	5.27	34.63