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CONVERTIBLE NOTES (Bridge Note debt discounts and debt premiums) (Details) - Convertible Debt [Member] - Convertible Bridge Loan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Debt discounts
Beginning balance	$ (1,111)
Additions	(2,088)	(4,275)
Deductions: Amortization/accretion	273	118
Deductions: Write-off related to note conversions	1,130
Deductions: Write-off related to note extinguishment		3,046
Ending balance	(1,796)	(1,111)
Debt premiums
Beginning balance	647
Additions:		879
Deductions: Amortization/accretion	(167)	(170)
Deductions: Write-off related to note conversions	(480)	(62)
Ending balance		$ 647

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Amount of additional to unamortized discount during the period.

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-Publisher FASB
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-Topic 835
-SubTopic 30
-Section 45
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