STOCK-BASED COMPENSATION (Tables)

6 Months Ended

Jun. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Stock-Based Compensation Charged

For the three and six months ended June 30, 2017 and 2016, we recognized charges for stock-based compensation of US$ 0.9 million and US$ 1.7 million; and US$ 0.9 million and US$ 1.7 million, respectively, presented as a component of selling, general and administrative expenses in our condensed consolidated statements of operations and comprehensive income / loss.

Schedule of Stock Options Activity

e six months ended June 30, 2017. The summary of stock options outstanding as at June 30, 2017 and December 31, 2016 is presented below:

	Shares	Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Term (years)	Aggregate Intrinsic Value
Outstanding at December 31, 2016	2,011,392	$	2.32	8.58	$	453
Outstanding at June 30, 2017	2,011,392	$	2.32	8.08	$	3,370
Vested and expected to vest	2,011,392	2.32		8.08	3,370
Exercisable at June 30, 2017	902,848	$	2.31	8.01	$	1,526

Schedule of Restricted Stock Unit Activity

The following table summarizes information about unvested RSU and PRSU as at June 30, 2017:

	Number of Shares / Units		Weighted Average Grant Date Fair Value
Unvested at December 31, 2016	2,542,625		$	2.61
Granted	1,158,887		3.62
Vested	(912,246	)	2.65
Forfeited	(75,582	)	1.53
Unvested at June 30, 2017	2,713,684		$	3.06