CONVERTIBLE NOTES (Bridge Note debt discounts and debt premiums) (Details) - Convertible Debt [Member] - Convertible Bridge Loan - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Debt discounts
Beginning balance			$ (1,111)
Additions		$ (1,337)	(2,086)	$ (3,161)
Deductions: Amortization/accretion	$ 41	59	154	68
Deductions: Write-off related to note conversions	63		989
Ending balance	$ (2,054)	$ (3,093)	(2,054)	$ (3,093)
Debt premiums
Beginning balance			647
Deductions: Amortization/accretion			(167)
Deductions: Write-off related to note conversions			$ (480)