STOCKHOLDERS' EQUITY - Additional Information (Details) - USD ($)		1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 31, 2018	Jan. 31, 2018	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2018	Sep. 14, 2018
Class of Stock [Line Items]
Preferred stock, authorized shares (in shares)			1,000,000		1,000,000
Preferred stock, par value (USD per share)			$ 0.0001		$ 0.0001
Common stock, authorized shares (in shares)			20,000,000		20,000,000	20,000,000
Common stock, par value (USD per share)			$ 0.0001		$ 0.0001
Exercise period of warrants					30 days
Derecognized amount of Series D preferred stock at conversion				$ 23,000,000	$ 54,000,000
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)			0		0
Preferred dividends paid-in-kind			$ 500,000		$ 1,600,000
Deemed Dividend					$ 5,300,000
Preferred stock, shares outstanding (in shares)			0		0
Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)			0		0
Preferred stock, shares outstanding (in shares)			0		0
Series A and B Preferred Stocks
Class of Stock [Line Items]
Number of warrants issued (in shares)					200,000
Number of common stock purchase for each warrant			0.05		0.05
Series A and B Preferred Stocks | Minimum
Class of Stock [Line Items]
Exercise price of warrants (in dollars per share)			$ 10.30		$ 10.30
Series A and B Preferred Stocks | Maximum
Class of Stock [Line Items]
Exercise price of warrants (in dollars per share)			$ 12.88		$ 12.88
Exchange | Second Lien Notes and Senior Secured Notes | Secured Debt
Class of Stock [Line Items]
Number of preferred stock convertible shares to be issued in conversion (in shares)	1.08689	1.08689
Exchange | Series A Preferred Stock | Second Lien Notes and Senior Secured Notes | Secured Debt
Class of Stock [Line Items]
Number of preferred stock convertible shares to be issued in conversion (in shares)	163.573	163.573
Number of preferred stock convertible shares reserved for issuance (in shares)	163.573	163.573
Value of shares issued					$ 62,000
Stock issuance costs					3,600
Discount on Series A preferred stock issued in debt exchange					$ 62,000,000
Exchange | Series A Preferred Stock | Participant Holders
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)	30,000	30,000
Dividend percentage on convertible preferred stock	8.00%
Exchange | Common Stock at Par Value | Second Lien Notes and Senior Secured Notes | Secured Debt
Class of Stock [Line Items]
Number of preferred stock convertible shares to be issued in conversion (in shares)	1.08689	1.08689	700,000	200,000	700,000
Exchange | Series E Warrants | Second Lien Notes and Senior Secured Notes | Secured Debt
Class of Stock [Line Items]
Number of preferred stock convertible shares to be issued in conversion (in shares)			94,800,000		94,800,000
Exercise price of warrants (in dollars per share)			$ 0.0001		$ 0.0001
Number of common stock purchase for each warrant			0.05		0.05
Exchange | Series E Warrants | Participant Holders | Second Lien Notes and Senior Secured Notes | Secured Debt
Class of Stock [Line Items]
Exercise price of warrants (in dollars per share)			$ 0.0001		$ 0.0001
Exchange | Series B Preferred Stock | Second Lien Notes and Senior Secured Notes | Secured Debt
Class of Stock [Line Items]
Value of shares issued					$ 10,800,000
Discount on Series A preferred stock issued in debt exchange					$ 10,800,000
Exchange | Series B Preferred Stock | Participant Holders | Second Lien Notes and Senior Secured Notes | Secured Debt
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)	900,000	900,000
Exchange | Series D Warrants | Second Lien Notes and Senior Secured Notes | Secured Debt
Class of Stock [Line Items]
Number of preferred stock convertible shares to be issued in conversion (in shares)				14,100,000
Exercise price of warrants (in dollars per share)				$ 0.0001
Number of common stock purchase for each warrant				0.05
Issuance of preferred stock (in shares)					0
Number of warrants outstanding			11,700,000		11,700,000
Number of warrants excercised			2,400,000		2,400,000
Exchange | Series D Warrants | Participant Holders | Second Lien Notes and Senior Secured Notes | Secured Debt
Class of Stock [Line Items]
Exercise price of warrants (in dollars per share)				$ 0.0001
Exchange | Series A and B Preferred Stocks | Participant Holders | Second Lien Notes and Senior Secured Notes | Secured Debt
Class of Stock [Line Items]
Conversion of stock, maximum percentage of ownership after transaction	10.00%	10.00%	10.00%	10.00%	10.00%
Exchange | Series C Warrants | Second Lien Notes and Senior Secured Notes | Secured Debt
Class of Stock [Line Items]
Number of common stock purchase for each warrant	0.05	0.05
Issuance of preferred stock (in shares)		8,300,000			4,800,000
Number of warrants outstanding			8,000,000		8,000,000
Number of warrants excercised			300,000		300,000
Exchange | Series C Warrants | Participant Holders | Second Lien Notes and Senior Secured Notes | Secured Debt
Class of Stock [Line Items]
Exercise price of warrants (in dollars per share)	$ 0.0001	$ 0.0001