EQUITY INCENTIVES - Summary of Equity Incentive Awards Activity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Stock Appreciation Rights
Awards - SARs and Stock Awards - Weighted Average Strike or Grant Price
Beginning balance (in dollars per share)	$ 3.21	$ 3.19	$ 3.19
Forfeited (in dollars per share)		$ 1.15
Expired (in dollars per share)			2.56
Ending balance (in dollars per share)	3.21		3.21
Weighted Average Price, Exercisable (in dollars per share)	$ 1.69		$ 1.69
Awards - SARs and Stock Awards - Number of Shares Under Option or Number of Shares
Beginning Balance (in shares)	909,837	938,667	938,667
Expired (in shares)			(28,830)
Ending Balance (in shares)	909,837		909,837
Exercisable (in shares)	27,693		27,693
Unvested Stock Awards
Equity incentives
Fair value of Stock Awards vested	$ 0.1
Awards - SARs and Stock Awards - Weighted Average Strike or Grant Price
Beginning balance (in dollars per share)	$ 4.90	$ 1.18	$ 1.18
Granted (in dollars per share)	0.24	0.39	0.24
Exercised or Earned (in dollars per share)	0.38		0.38
Forfeited (in dollars per share)		$ 1.46
Ending balance (in dollars per share)	$ 0.99		$ 4.90
Awards - SARs and Stock Awards - Number of Shares Under Option or Number of Shares
Beginning Balance (in shares)	421,268	2,401,268	2,401,268
Granted (in shares)	2,569,000		135,000
Exercised or Earned (in shares)	(369,000)		(2,115,000)
Ending Balance (in shares)	2,621,268		421,268