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Income Taxes (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Income Taxes (Textual) [Abstract]
Net operating loss carryforwards	$ 98,100,000
Research and experimentation credits	687,000,000	71,000
Valuation allowance	(42,215,000)	(40,774,000)
Increase net deferred tax asset		1,500,000
Federal statutory income tax rate	35.00%
Reserve for uncertain tax positions	0	0
Interest or penalties recognized	$ 0	$ 0

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Increase decrease in deferred tax assets net.

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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 expected to be realized or consumed after one year (or the normal operating cycle, if longer).

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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 estimated loss resulting from the income tax examination that has been accrued as of the balance sheet date, including interest and penalties.

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The portion of the difference between total income tax expense or benefit as reported in the Income Statement 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 research tax credits generated or utilized under enacted tax laws during the period.

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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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