Employee Retirement plans (Tables)

12 Months Ended

Dec. 31, 2012

Compensation and Retirement Disclosure [Abstract]

Schedule Of Defined Benefit Plan Assumptions [Table Text Block]

The benefit obligation is calculated as the present value of estimated future benefits to be paid, using the following assumptions:

	2010			2011			2012
Average increase of salaries		3	%		3	%		3	%
Discounted interest rate		4.75	%		4.5	%		3	%
Turn over		actuarial standard and average of the last 5 years			actuarial standard and average of the last 5 years			actuarial standard and average of the last 5 years
Age of retirement		60 to 65 years			60 to 65 years			60 to 65 years
		actuarial standard based on age and professional status			actuarial standard based on age and professional status			actuarial standard based on age and professional status

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

Changes in the funded status of the benefit plans were as follows:

	December 31,
In thousands of U.S. dollars	2011			2012
Benefit obligations at beginning of year		1,880			2,106
Service cost		166			162
Interest cost		93			91
Plan amendments		-			-
Benefits paids		(10	)		(267	)
Actuarial loss (gain)		58			723
Exchange rate changes		(81	)		4
Benefit obligations at end of year		2,106			2,819

Schedule Of Defined Benefit Plan Expected Future Benefit [Table Text Block]

The future expected benefits to be paid over the next five years and for the five years thereafter is as follows:

Future expected payment of benefits:	Year Ending:
In thousands of U.S. dollars
	12/31/2013	-
	12/31/2014	60,711
	12/31/2015	202,173
	12/31/2016	234,059
	12/31/2017	-
	Next 5 Years	530,305