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Stock based compensation (Tables)

12 Months Ended

Dec. 31, 2012

Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]

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

The weighted-average assumptions on grants made in each of the following years were:

		Year Ended December 31
		2010				2011				2012

Weighted-average expected life (years)			4.56				4.00				5.70
Expected volatility rate			60.5	%			63.6	%			62.5	%
Expected dividend yield			-				-				-
Risk-free interest rate			1.43	%			0.83	%			0.95	%
Forfeiture rate			-				-				-

Schedule Of Sharebased Compensation Expense [Table Text Block]

Stock based compensation expense recognized was as follows:

(In thousands of U.S dollars except per share data)		Options												Free of charge share awards												Warrants												Total
		2010				2011				2012				2010				2011				2012				2010				2011				2012				2010				2011				2012
Research and development			400				332				419				831				897				649				-				-				-				1,231				1,229				1,068
Cost of goods sold			9				3				2				113				89				46				-				-				-				122				91				49
Selling, general and administrative			615				461				1,280				677				671				464				525				327				179				1,817				1,459				1,923

Total stock-based compensation expense			1,024				796				1,701				1,621				1,657				1,160				525				327				179				3,170				2,779				3,040

Effect on earnings per share
Basic			0.04				0.03				0.07				0.07				0.07				0.05				0.02				0.01				0.01				0.13				0.11				0.12

Diluted			0.04				0.03				0.07				0.07				0.07				0.05				0.02				0.01				0.01				0.13				0.11				0.12

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

The summary of warrants activity is as follows:

		Warrants Outstanding				Weighted Average Exercise Price in U.S dollars [1]				Weighted Average Exercise Price in Euros
Balance at January 1, 2010			630,500			$	11.73			€	8.24
Warrants granted			250,000			$	6.97			€	5.44
Warrants cancelled			130,500			$	25.11			€	18.62
Balance at December 31, 2010			750,000			$	7.82			€	5.50
Warrants granted			300,000			$	5.03			€	3.54
Warrants cancelled			150,000			$	6.94			€	4.98
Balance at December 31, 2011			900,000			$	6.89			€	4.85
Warrants granted			3,300,000			$	8.63			€	6.61
Warrants reintegrated			100,000			$	6.65			€	4.97
Warrants cancelled			200,000			$	10.20			€	6.57
Balance at December 31, 2012			4,100,000			$	6.89			€	4.85

[1] Historical exchange rate at date of grant

Schedule Of Warrants Activity [Table Text Block]

Exercise prices and intrinsic value for warrants outstanding as of December 31, 2012 were as follows:

		Warrants Outstanding																Warrants Exercisable
Range of exercise prices in euros		Number of shares				Weighted average remaining contractual life				Weighted average exercise price in euros				Weighted average intrinsic value in euros				Number of shares				Weighted average exercise price in euros				Weighted average intrinsic value in euros

0 to 4.50			550,000				1.57				3.98				-				550,000				3.98				-
5.44 to to 6.57			2,450,000				4.82				5.67				-				2,450,000				5.67				-
6.58 to 8.52			1,100,000				5.20				8.42				-				1,100,000				8.42				-
			4,100,000				4.48				6.10								4,100,000				6.44				-

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

The activity under the option plans is as follows:

		Shares Available for Grant				Options Granted and Outstanding				Weighted Average Exercise Price in U.S dollars[1]				Weighted Average Exercise Price in Euros
Balance at January 1, 2010			45,000				3,110,990			$	14.96			€	12.08
Options authorized			750,000				-				-				-
Granted			(305,000	)			305,000			$	6.91			€	5.21
Exercised			-				(63,000	)		$	4.01			€	5.75
Forfeited			(15,000	)			(254,500	)		$	8.51			€	7.65
Balance at December 31, 2010			475,000				3,098,490			$	14.69			€	11.71
Options authorized
Granted			(200,000	)			200,000			$	4.39			€	3.28
Exercised			-				(44,200	)		$	1.48			€	1.63
Forfeited			-				(113,300	)		$	8.93			€	7.49
Balance at December 31, 2011			275,000				3,140,990			$	14.65			€	11.66
Options authorized			1,000,000				-				-				-
Granted			(550,000	)			550,000			$	5.97			€	4.67
Exercised			-				(195,000	)		$	2.04			€	2.33
Forfeited			10,000				(223,500	)		$	16.88			€	13.69
Balance at December 31, 2012			735,000				3,272,490			$	13.79			€	10.90

[1] Historical exchange rate at date of grant

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

Exercise prices and intrinsic value for options outstanding as of December 31, 2012 were as follows:

		Stock Options Outstanding																Stock Options Exercisable
Range of exercise prices in euros		Number of shares				Weighted average remaining contractual life				Weighted average exercise price in euros				Weighted average intrinsic value in euros				Number of shares				Weighted average exercise price in euros				Weighted average intrinsic value in euros

0 to 3.28			195,000				8.45				3.28				-				48,750				3.28				-
4.03 to 5.44			1,385,000				7.04				4.73				-				735,000				4.74				-
6.40 to 12.02			123,500				1.62				10.93				-				123,500				10.93				-
12.86 to 16.23			1,040,990				2.60				14.46				-				1,040,990				14.46				-
19.2 to 25.39			528,000				2.58				22.85				-				528,000				22.85				-

			3,272,490				4.34				10.90				0.00				2,476,240				12.97				0.00

Schedule of Share-based Compensation, Activity [Table Text Block]

The activity under the free share award plans is as follows:

		Free of Charge Share Award Available for Grant				Free of Charge Share Award Granted and Outstanding				Weighted Average Fair Value at grant date in U.S dollars[1]				Weighted Average Fair Value at grant date in Euros

Balance at January 1, 2010			10,650				573,350			$	6.68			€	4.73
Options authorized			200,000				-				-				-
Granted			(230,000	)			230,000			$	7.01			€	5.29
Exercised			-				(240,050	)		$	5.91			€	4.39
Forfeited			37,500				(37,500	)		$	5.93			€	4.39
Cancelled			3,300				(3,300	)		$	5.17			€	4.03
Balance at December 31, 2010			18,150				522,500			$	7.25			€	5.16
Options authorized			200,000				-				-				-
Granted			(200,000	)			200,000			$	4.39			€	3.28
Exercised			-				(272,400	)		$	7.47			€	5.07
Forfeited			8,450				(8,450	)		$	7.22			€	5.18
Cancelled			1,000				(1,000	)		$	7.45			€	5.06
Balance at December 31, 2011			26,600				440,650			$	5.81			€	4.36
Options authorized			200,000				-				-				-
Granted			(189,700	)			189,700			$	3.07			€	2.38
Exercised			-				(258,150	)		$	6.52			€	4.92
Forfeited			21,550				(21,550	)		$	5.79			€	4.35
Balance at December 31, 2012			58,450				350,650			$	3.81			€	2.88

[1] Historical exchange rate at date of grant

Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

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Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

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