Goodwill and intangible assets (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	December 31,
	2011									2012
(In thousands of U.S. dollars)	Gross carrying amount		Accumulated amortization			Impairment		Intangible assets, net		Gross carrying amount		Accumulated amortization			Impairment			Intangible assets, net
Goodwill	$	534		(534	)		-		-	$	544		(544	)		-			-
Goodwill Eclat acquisition		-		-			-		-		18,491		-			-			18,491
Total Goodwill	$	534	$	(534	)	$	-	$	-	$	19,035	$	(544	)	$	-		$	18,491
In-progess R&D		-		-			-		-		47,309		-			(7,170	)		40,139
License		-		-			-		-		1,973		(523	)					1,450
Total Intangible assets	$	-	$	-		$	-	$	-	$	49,282	$	(523	)	$	(7,170	)	$	41,589