EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								9 Months Ended	12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Numerators:
Net (loss) and numerator for dilutive (loss) per share - continuing operations	$ (5,433)	$ (4,370)	$ (4,295)	$ (5,608)	$ (3,912)	$ (1,143)	$ (2,938)	$ (2,791)	$ (6,872)	$ (19,706)	$ (10,784)	$ (13,682)
Numerator for dilutive income per share - discontinued operations						$ 69,612			$ 74,134	0	73,503	8,620
Numerator for full dilutive (loss) income per share - all										(19,706)	62,719	(5,062)
Derivative liability warrants										0	0	(183)
Numerator for full dilutive (loss) income per share - all										$ (19,706)	$ 62,719	$ (5,245)
Denominator
Weighted average number of shares issued, basic (in shares)										34,069	33,185	31,420
Weighted average number of shares outstanding dilutive (in shares)						34,934			33,952	34,069	34,366	31,427
Loss per share from continuing operations
Basic and diluted (in dollars per share)						$ (0.03)			$ (0.21)	$ (0.58)	$ (0.32)	$ (0.44)
Income per share from discontinued operations
Basic (in dollars per share)						2.09			2.25	0.00	2.21	0.27
Diluted (in dollars per share)						1.99			2.19	0.00	2.14	0.27
Income (loss) per share from all operations
Basic (in dollars per share)						2.06			2.04	(0.58)	1.89	(0.16)
Diluted (in dollars per share)						$ 1.96			$ 1.98	$ (0.58)	$ 1.83	$ (0.17)
Derivative liability warrants
Denominator
Derivative liability warrants (in shares)										0	0	7
Income (loss) per share from all operations
Anti-dilutive instruments excluded from diluted (loss) per common share - continuing operations: (in shares)										0	0	7
Anti-dilutive instruments excluded from diluted income (loss) per common share - discontinued operations (in shares)										0	0	7
Stock options
Denominator
Stock options (in shares)										0	1,181	0
Income (loss) per share from all operations
Anti-dilutive instruments excluded from diluted (loss) per common share - continuing operations: (in shares)										3,967	1,181	646
Anti-dilutive instruments excluded from diluted income (loss) per common share - discontinued operations (in shares)										3,967	0	646
Anti-dilutive instruments excluded from diluted income (loss) per common share - all operations: (in shares)										3,967	0	646
Continuing Operations
Denominator
Weighted average number of shares outstanding dilutive (in shares)										34,069	33,185	31,420
Discontinued Operations
Denominator
Weighted average number of shares issued, basic (in shares)										34,069	33,185	31,420
Weighted average number of shares outstanding dilutive (in shares)										34,069	34,366	31,420
Discontinued Operations | Stock options
Denominator
Stock options (in shares)										0	1,181	0