STOCKHOLDERS' EQUITY (Offering Warrants) (Details) - USD ($)	1 Months Ended					12 Months Ended
	Nov. 30, 2018	Apr. 30, 2018	Feb. 28, 2018	Nov. 30, 2017	Aug. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Jun. 29, 2017
Class of Stock [Line Items]
Deemed dividend						$ 4,222,000	$ 12,431,000
Warrants exercised						300,000
Common Stock
Class of Stock [Line Items]
Stock rights issued (in shares)					856,446
Exercise price (in dollars per share)								$ 7.50
Offering Warrants
Class of Stock [Line Items]
Stock rights issued (in shares)					2,680,000
Exercise price (in dollars per share)	$ 0.15	$ 0.30	$ 1.04	$ 1.40	$ 3.00	$ 0.75
Class of warrant or right, term					5 years
Deemed dividend				$ 211,000
Warrants exercised						2,200,000
Proceeds from issuance of warrants						$ 795,000
Intrinsic value of warrants exercised in period						$ 420,000
Offering Warrants | Deemed Dividend G
Class of Stock [Line Items]
Deemed dividend			$ 62,000
Offering Warrants | Deemed Dividend H
Class of Stock [Line Items]
Deemed dividend		$ 63,000
Offering Warrants | Deemed Dividend I
Class of Stock [Line Items]
Deemed dividend	$ 5,000
Offering Warrants | Common Stock
Class of Stock [Line Items]
Percentage of outstanding shares owned threshold prior to exercise of warrants					4.99%
Percentage of outstanding shares owned threshold after exercise of warrants					9.99%