FAIR VALUE (Schedule of Changes in Fair Value of Liability) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Total (gains) or losses:
Deductions - warrant liability settlement	$ (477)
Warrant Liabilities [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	1,132	$ 841
Additions	1,858	2,665
Total (gains) or losses:
Revaluation recognized in earnings	(416)	(2,061)
Modification recognized in earnings	1,128	143
Deductions - warrant liability settlement	(2,364)	(456)
Balance at end of period	1,338	1,132
2016 Warrant Liability [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	116	841
Total (gains) or losses:
Revaluation recognized in earnings	(46)	(269)
Deductions - warrant liability settlement		(456)
Balance at end of period	70	116
2018 Warrant Liabilities [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	1,016
Additions	1,858	2,665
Total (gains) or losses:
Revaluation recognized in earnings	(370)	(1,792)
Modification recognized in earnings	1,128	143
Deductions - warrant liability settlement	(2,364)
Balance at end of period	$ 1,268	$ 1,016