STOCKHOLDERS' EQUITY (Convertible Promissory Note Warrants) (Details) - USD ($)	1 Months Ended			12 Months Ended
	Nov. 30, 2018	Apr. 30, 2018	Aug. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Feb. 28, 2018	Oct. 03, 2017
Class of Stock [Line Items]
Deemed dividend				$ 0	$ 4,222,000
Convertible Promissory Note Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share)				$ 21.00			$ 45.00
Offering Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share)	$ 2.25	$ 4.50	$ 45.00	11.25		$ 15.60
Class of warrant or right, term			5 years
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
2018 Inducement Agreement | Convertible Promissory Note Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share)				11.25
2018 Purchase Agreement | Convertible Promissory Note Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share)				$ 15.60
2018 Note Agreement
Class of Stock [Line Items]
Exercise price (in dollars per share)	$ 2.25	$ 4.50
2018 Note Agreement | Deemed Dividend H
Class of Stock [Line Items]
Deemed dividend					$ 63,000
Maximum | 2018 Inducement Agreement | Convertible Promissory Note Warrants | Deemed Dividend O
Class of Stock [Line Items]
Deemed dividend				$ 1,000
Maximum | 2018 Purchase Agreement | Convertible Promissory Note Warrants | Deemed Dividend N
Class of Stock [Line Items]
Deemed dividend				$ 1,000