Schedule of Capital Units (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Gross proceeds	$ 3,200
Transaction costs	328
Net proceeds	2,872
Common stock [Member]
Gross proceeds	1,627
Transaction costs	167
Net proceeds	1,460
Warrants [Member]
Gross proceeds	487
Transaction costs	50
Net proceeds	437
Convertible debt [Member]
Gross proceeds	1,086
Transaction costs	111
Net proceeds	$ 975