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Income Taxes (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes (Textual) [Abstract]
Net operating losses carry forward	$ 136,515	$ 106,939
Limited net operating loss	14,049
Limited net operating loss, expiration dates	expires at various dates through 2024
Worthless And Written-Off Losses	3,487
Net operating loss annual utilization	524
Operating loss carryforwards incurred, annual limit estimated	58,888
Unlimited NOLs	122,466
Composition of deferred tax asset	45.22%	45.13%
NOLs excluding written off	37,571	39,977
Deferred tax asset offset by a valuation allowance	44,478	49,422
Federal statutory rate	35.00%	35.00%	(35.00%)
Uncertain tax positions, interest or penalties Amount	$ 0

X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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

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The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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The sum of domestic, foreign and state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws.

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The expiration date of each operating loss carryforward included in total operating loss carryforwards, or the applicable range of such expiration dates.

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This element represents the total of interest expense recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties in the period in which the entity claims or expects to claim a tax position, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

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