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Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Reconciliation of the (benefit) provision for income taxes
Loss from continuing operations before taxes	$ (16,486)	$ (22,649)
Income tax expense computed at statutory federal tax rate	(5,605)	(7,701)
Disallowed expenses and non-taxable income	27	406
Loss surrendered to generate R&D credit	2,479	7,294
Additional research and development tax relief	(3,402)	(7,262)
Change in valuation allowance	$ (4,189)	$ (4,963)
Research and development credit - prior years
Foreign items, including change in tax rates, and other	$ 6,882	$ 3,555
Other foreign items	1,664	5,428
Current - total	$ (2,144)	$ (3,243)

X

- Definition

The sum of the differences between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to nondeductible expenses under enacted tax laws, differences in the methodologies used to determine expense amounts for financial statements prepared in accordance with generally accepted accounting principles and income that is exempt from income taxes under enacted tax laws.

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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