STOCKHOLDERS' EQUITY (Series C Warrants) (Details) - USD ($)	1 Months Ended				12 Months Ended
	Nov. 30, 2018	Apr. 30, 2018	Feb. 28, 2018	Nov. 30, 2017	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Underlying shares (in shares)					909,189
Deemed dividend					$ 0	$ 4,222,000
Warrants exercised					20,000
Series C Warrants [Member]
Class of Stock [Line Items]
Underlying shares (in shares)				130,857
Exercise price (in dollars per share)				$ 24.45
Class of warrant or right, term				5 years
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%
2018 Purchase Agreement | Deemed Dividend R
Class of Stock [Line Items]
Deemed dividend						58,000
2018 Purchase Agreement | Deemed Dividend J
Class of Stock [Line Items]
Deemed dividend						8,000
2018 Purchase Agreement | Series C Warrants [Member]
Class of Stock [Line Items]
Exercise price (in dollars per share)			$ 15.60		$ 11.25
2018 Purchase Agreement | Series C Warrants [Member] | Deemed Dividend R
Class of Stock [Line Items]
Deemed dividend			$ 58,000
2018 Note Agreement
Class of Stock [Line Items]
Exercise price (in dollars per share)	$ 2.25	$ 4.50
2018 Note Agreement | Deemed Dividend S
Class of Stock [Line Items]
Deemed dividend						$ 45,000
2018 Note Agreement | Series C Warrants [Member]
Class of Stock [Line Items]
Exercise price (in dollars per share)	$ 2.25	$ 4.50
Warrants exercised					25,037	105,820
Proceeds from issuance of warrants					$ 56,000	$ 476,000
Intrinsic value of warrants exercised in period					$ 443,000	$ 294,000
2018 Note Agreement | Series C Warrants [Member] | Deemed Dividend S
Class of Stock [Line Items]
Deemed dividend		$ 45,000
2018 Note Agreement | Series C Warrants [Member] | Deemed Dividend T
Class of Stock [Line Items]
Deemed dividend	$ 4,000