FAIR VALUE (Schedule of Changes in Fair Value of Liability) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 402	$ 892	$ 1,338	$ 1,132
Additions		1,858		1,858
Total (gains) losses:
Revaluation recognized in earnings	372	822	(564)	582
Modification recognized in earnings		1,128		1,128
Deductions - warrant liability settlement		(2,364)		(2,364)
Balance at end of period	774	2,336	774	2,336
2016 Warrant Liability [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	58	93	70	116
Total (gains) losses:
Revaluation recognized in earnings	(19)	(7)	(31)	(30)
Balance at end of period	39	86	39	86
Bridge Note Warrant Liabilities [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	344	799	1,268	1,016
Additions		1,858		1,858
Total (gains) losses:
Revaluation recognized in earnings	391	829	(533)	612
Modification recognized in earnings		1,128		1,128
Deductions - warrant liability settlement		(2,364)		(2,364)
Balance at end of period	$ 735	$ 2,250	$ 735	$ 2,250