EARNINGS (LOSS) PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Numerators:
Net loss attributable to stockholders	$ (11,896)	$ (19,706)
Weighted average number of shares outstanding - basic and diluted (in shares)	34,212	34,069
Loss per share - basic and diluted (in dollars per share)	$ (0.35)	$ (0.58)
Stock options
Anti-dilutive instruments excluded from diluted loss per common share:
Options (in shares)	4,939	3,967