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The Company's effective income tax rate differed from the federal statutory rate as follows (Details)
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12 Months Ended | ||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| The Company's effective income tax rate differed from the federal statutory rate as follows | |||
| U.S. Federal statutory tax rate | (35.00%) | (35.00%) | (35.00%) |
| Deferred state taxes, net of federal benefit | (1.30%) | (3.30%) | (3.10%) |
| Common stock warrant liability | 20.60% | (5.30%) | (4.40%) |
| Gain on Hypulsion transaction | (1.80%) | 0.00% | 0.00% |
| Other, net | 0.10% | 0.10% | 0.60% |
| Change to uncertain tax positions | (1.30%) | (1.60%) | (57.50%) |
| Foreign tax rate differential | 0.20% | 0.50% | 0.80% |
| Expiring attribute carryforward | 2.20% | 0.00% | 5.40% |
| Adjustments to open deferred tax balance | (0.30%) | (5.80%) | (1.70%) |
| Writeoff of tax attributes due to imposition of Section 382 limitation | 1.50% | 165.70% | 840.90% |
| Tax credits | 0.00% | 0.00% | (0.30%) |
| Change in valuation allowance | 14.50% | (115.30%) | (745.70%) |
| Effective income tax rate reconciliation | (0.60%) | 0.00% | 0.00% |
| X | ||||||||||
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- Definition
Adjustments to open deferred tax balance No definition available.
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| X | ||||||||||
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- Definition
Percentage 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 changes in the valuation allowance for deferred tax assets. No definition available.
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| X | ||||||||||
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- Definition
Percentage of Change to uncertain tax positions No definition available.
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| X | ||||||||||
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- Definition
Percentage of Common stock warrant liability No definition available.
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| X | ||||||||||
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- Definition
Percentage of Deferred state taxes, net of federal benefit No definition available.
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| X | ||||||||||
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- Definition
Effective income tax rate reconciliation No definition available.
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| X | ||||||||||
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- Definition
Expiring attribute carryforward No definition available.
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| X | ||||||||||
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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 foreign income tax expense (benefit). No definition available.
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| X | ||||||||||
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- Definition
Percentage of Gain on Hypulsion transaction No definition available.
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- Definition
Percentage of Other, net No definition available.
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| X | ||||||||||
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- Definition
Tax credits No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Percentage of domestic federal statutory tax rate applicable to pretax income (loss). No definition available.
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| X | ||||||||||
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- Definition
Writeoff of tax attributes due to imposition of Section 382 limitation No definition available.
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