STOCKHOLDERS' EQUITY (Series B Preferred Stock) (Details) - USD ($)	1 Months Ended	12 Months Ended
	Aug. 31, 2017	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2020	Feb. 29, 2020	Aug. 25, 2017
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share)		$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)		15,000,000	15,000,000
Preferred stock, shares outstanding (in shares)		47	47
Preferred stock, shares issued (in shares)		47	47
Offering Warrants
Class of Stock [Line Items]
Stock rights issued (in shares)	178,666
Exercise price (in dollars per share)	$ 45.00			$ 0.40	$ 2.25
Proceeds from issuance of warrants			$ 15,000
Preferred Class B
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share)						$ 0.01
Number of shares converted (in shares)		0	0
Preferred stock, shares authorized (in shares)		6,900	6,900			6,900
Preferred stock, shares outstanding (in shares)		47	47
Preferred stock, shares issued (in shares)		6,900	6,900
Preferred Stock, Liquidation Preference Per Share						$ 1,000
2018 Note Agreement | Preferred Class B | Deemed Dividend A
Class of Stock [Line Items]
Beneficial conversion feature on warrants		$ 3,300,000