Acquisition-Related Contingent Consideration (Details) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended											3 Months Ended
	Mar. 31, 2014 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2012 EUR (€)	Sep. 30, 2010 USD ($)	Apr. 01, 2009 USD ($)	Apr. 01, 2009 EUR (€)	Mar. 31, 2009	Mar. 31, 2014 Norwood Secured Loan [Member] EUR (€)	Mar. 31, 2014 Norwood Secured Loan [Member] Payment One [Member] EUR (€)	Mar. 31, 2014 Norwood Secured Loan [Member] Payment Two [Member] EUR (€)	Mar. 31, 2014 Norwood Secured Loan [Member] Payment Three [Member] EUR (€)	Mar. 31, 2014 Norwood Secured Loan [Member] Payment Four [Member] EUR (€)	Mar. 31, 2014 Unobservable Inputs (Level 3) [Member] EUR (€)	Mar. 31, 2013 Unobservable Inputs (Level 3) [Member] EUR (€)
Business Acquisition, Contingent Consideration [Line Items]
Cash consideration paid for Bestewil						€ 5,000
Convertible redeemable note issued for Bestewil						2,500
Term of convertible redeemable note					36 months	36 months
Interest rate (in hundredths)					5.00%	5.00%
Conversion price (in dollars per share)				$ 0.50	$ 0.80
Percentage of acquired entity's shares used as collateral for convertible debt (in hundredths)							33.30%
Numerator for conversion of debt		9,609
Fair value difference between original conversion price and shares actually issued			807
Debt instrument face amount	190							2,500
Debt amendment amount payable									521	517		1,576
Debt amendment principal payable									500	500		1,500
Debt amendment interest payable									21	17	51	76
Outstanding principal after first payment								2,000
Outstanding principal after second payment								1,500
Changes to the Company's acquisition-related contingent consideration [Abstract]
Balance at beginning of period													236	6,533
Change in fair value													0	(6,279)
Balance at end of period													236	254
Contingent consideration settled with issuance of shares	$ 325