Income Taxes U.S. Federal Net Operating Loss (Details) (USD $)	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	$ 64,600,000	$ 72,400,000
Net Operating Loss Carryforwards Utilization	15
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	250,000	2,800,000
Net Operating Loss Carryforwards Used In The Current Period	8,600,000	2,600,000
Net Operating Loss Carryforwards Used in The Current Period Foreign	$ 2,600,000

The tax effect as of the balance sheet date of the amount of excess of tax deductions over gross income in a year which cannot be used on the tax return of the country of domicile in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

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The tax effect as of the balance sheet date of the amount of excess of tax deductions over gross income in a year which cannot be used on the tax return of a country outside the country of domicile in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

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