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Taxes (Details 4) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Taxes
Material uncertain tax positions	$ 0	$ 0
Valuation allowance for deferred tax assets	56,507,000	50,215,000
Change in valuation allowance	6,302,000	(579,000)	2,952,000
Federal
Taxes
NOLs carryforward	22,100,000	19,200,000
UK
Taxes
NOLs carryforward	162,400,000	153,400,000
State
Taxes
NOLs carryforward	21,300,000
Research and development | UK
Taxes
Income tax credits	$ 1,700,000	$ 1,400,000	$ 600,000

X

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

+ References

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- Definition

The current portion of the amount recognized for uncertain tax positions as of the balance sheet date.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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