(LOSS) EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
(LOSS) EARNINGS PER SHARE
(Loss) profit for the purpose of basic and diluted (loss) earnings per share	$ (21,955)	$ (33,171)	$ 3,784
Weighted average number of ordinary shares outstanding - basic and diluted	419,546,514	418,314,541	401,602,159
Basic net (loss) earnings per share	$ (0.05)	$ (0.1)	$ 0.01
Diluted net (loss) earnings per share	$ (0.05)	$ (0.1)	$ 0.01
Number of anti-dilutive instruments excluded from the computation of EPS	1,160,000	1,160,000	1,280,000
Options
(LOSS) EARNINGS PER SHARE
Number of anti-dilutive instruments excluded from the computation of EPS	220,000	220,000	330,000
Restricted shares
(LOSS) EARNINGS PER SHARE
Number of anti-dilutive instruments excluded from the computation of EPS	940,000	940,000	950,000

The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator).

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The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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The profit (loss) attributable to ordinary equity holders of the parent equity. [Refer: Profit (loss)]

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The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor.

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Number of anti-dilutive securities

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