STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2016

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

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

The following table summarizes information about stock option activity during 2016, 2015, and 2014:

	2016			2015				2014
	Shares	Weighted Average Exercise Price (per share)		Shares		Weighted Average Exercise Price (per share)		Shares		Weighted Average Exercise Price (per share)
Outstanding at January 1	1,666,000	$	3.53	155,000		$	29.88	390,500		$	27.26
Awards granted	411,392	2.46		1,600,000		2.29		—		—
Awards forfeited	—	—		(20,000	)	23.12		(114,500	)	30.87
Awards expired	(66,000)	33.66		(69,000	)	28.23		(121,000	)	20.48
Outstanding at December 31	2,011,392	$	2.32	1,666,000		$	3.53	155,000		$	29.88

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

For the years ended December 31, 2016, 2015 and 2014, we recognized charges for stock-based compensation of US$ 3.5 million, US$ 2.4 million and US$ 1.3 million, respectively, presented as a component of selling, general and administrative expenses in our consolidated statements of operations and comprehensive income / loss.

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The weighted average assumptions used in the Black-Scholes model for grants made in the year ended December 31, 2016 and 2015 were as follows:

	For The Year Ended December 31,
	2016			2015
Risk-free interest rate	1.61		%	1.86		%
Expected term (years)	6.25			6.25
Expected volatility	69.22		%	75.18		%
Dividend yield	0		%	0		%
Weighted-average fair value	$	1.56		$	1.54

Schedule of Stock Option Activity

A summary of option activity for the year ended 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, 2015	1,666,000		$	3.53	9.07	$	640
Granted	411,392		2.46
Expired	(66,000	)	33.66
Outstanding at December 31, 2016	2,011,392		$	2.32	8.58	$	453
Vested or expected to vest at December 31, 2016	2,011,392		$	2.32	8.58	$	453
Exercisable at December 31, 2016	400,000		$	2.29	8.42	$	104

Schedule of Restricted Stock Unit Activity

The following table summarizes information about unvested RSUs as at December 31, 2016:

	Number of Shares / Units		Weighted-Average Grant Date Fair Value
Unvested at December 31, 2015	2,554,597		$	2.72
Granted	705,166		2.41
Vested	(626,126	)	2.83
Forfeited	(91,012	)	2.47
Unvested at December 31, 2016	2,542,625		$	2.61