ORGANIZATION AND OPERATIONS (Details)	Sep. 03, 2019 $ / shares	Dec. 31, 2020 $ / shares shares	Jun. 29, 2020 $ / shares	Jun. 28, 2020 $ / shares	Feb. 29, 2020 $ / shares	Jan. 31, 2020 shares	Dec. 31, 2019 $ / shares shares	Nov. 21, 2017 $ / shares
Class of Stock [Line Items]
Common stock, par value (in usd per share)	$ 0.003	$ 0.001					$ 0.001
Common stock, shares authorized (in shares) | shares		900,000,000					900,000,000
Preferred stock, shares authorized (in shares) | shares		100,000,000
Reverse stock split ratio, common stock	0.3333
Registration Statement
Class of Stock [Line Items]
Warrant right to purchase a share of common stock (in shares) | shares		0.25				0.25
Series L Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (in usd per share)		$ 0.001					$ 0.001
Preferred stock, liquidation preference per share (in usd per share)		28.37					28.37
Series L Preferred Stock | Registration Statement
Class of Stock [Line Items]
Preferred stock, liquidation preference per share (in usd per share)								$ 28.37
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (in usd per share)		0.001					0.001
Preferred stock, liquidation preference per share (in usd per share)		25.00					25.00
Series A Preferred Stock | Registration Statement
Class of Stock [Line Items]
Preferred stock, par value (in usd per share)		0.001
Preferred stock, stated value (in usd per share)		25.00
Series A Preferred Stock | Continuous Public Offering
Class of Stock [Line Items]
Purchase price (in usd per share)					$ 25.00
Series D Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (in usd per share)		0.001			0.001		0.001
Preferred stock, liquidation preference per share (in usd per share)		$ 25.00			25.00		$ 25.00
Series D Preferred Stock | Continuous Public Offering
Class of Stock [Line Items]
Purchase price (in usd per share)			$ 24.50	$ 25.00	$ 25.00