SHARE BASED AND OTHER COMPENSATION - Summary of stock option activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Number of Options
Exercised (in shares)	0
Omnibus Incentive Plan 2016
Number of Options
Outstanding beginning balance (in shares)	5,031,578	7,305,000
Granted (in shares)	135,000	352,500
Exercised (in shares)	0	(1,024,877)
Forfeited or canceled (in shares)	(1,578,228)	(1,601,045)
Outstanding ending balance (in shares)	3,588,350	5,031,578	7,305,000
Weighted Average Exercise Price
Outstanding beginning (in dollars per share)	$ 3.81	$ 3.74
Granted (in dollars per share)	2.17	4.07
Exercised (in dollars per share)	0.00	2.67
Forfeited or canceled (in dollars per share)	3.14	4.20
Outstanding ending (in dollars per share)	$ 4.05	$ 3.81	$ 3.74
Stock Options Outstanding and Exercisable
Number of options vested/exercisable (in shares)	4,125,842	5,035,317	3,534,484
Weighted average remaining contractual life (Years)	7 years 2 months 12 days	7 years 10 months 24 days	8 years 10 months 24 days