Fair Value (Details 2) - Level 3 [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Beginning Balance	$ 48	$ 210
Fair value of warrants issued		393
Reclassification of warrants to derivative liabilities		3,773
Reclassification of warrants from derivative liabilities to equity		(3,773)
Change in fair value of derivative	(48)	(555)
Ending Balance		48
Warrant Liability [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Beginning Balance	48	209
Fair value of warrants issued		393
Reclassification of warrants to derivative liabilities		3,773
Reclassification of warrants from derivative liabilities to equity		(3,773)
Change in fair value of derivative	(48)	(554)
Ending Balance		48
Embedded Conversion Feature [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Beginning Balance		1
Fair value of warrants issued
Reclassification of warrants to derivative liabilities
Reclassification of warrants from derivative liabilities to equity
Change in fair value of derivative		(1)
Ending Balance