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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2014
Income Tax Disclosure [Abstract] |
Composition of Loss from Continuing Operations before Income Taxes | Composition of loss from continuing operations before income taxes is as follows:
|  | Year ended December 31, |
|  | 2013 |  |  | 2014 |
Domestic |  | $ | (19,710 | ) |  | $ | (8,204 | )
Foreign |  |  | (1,476 | ) |  |  | (2,091 | )
|  | $ | (21,186 | ) |  | $ | (10,295 | )
Components of Income Tax Expense (Benefit) | Income tax expense (benefit) consists of the following:
|  | Year ended December 31, |
|  | 2013 |  |  | 2014 |
Current: |  |  |  |  |  |  |  |
Federal |  | $ | — |  |  | $ | — |
State and local |  |  | 2 |  |  |  | 1 |
Foreign |  |  | — |  |  |  | 120 |
|  |  | 2 |  |  |  | 121 |
Deferred: |  |  |  |  |  |  |  |
Federal |  |  | — |  |  |  | — |
State and local |  |  | — |  |  |  | — |
Foreign |  |  | 154 |  |  |  | 43 |
|  |  | 154 |  |  |  | 43 |
Total income tax expense |  | $ | 156 |  |  | $ | 164 |
Summary of Reconcilation Between Federal Tax Rate | Effective Income Tax Rates Set forth below is reconciliation between the federal tax rate and the Company’s effective income tax rates with respect to continuing operations:
|  | Year ended December 31, |
|  | 2013 |  |  | 2014 |
Statutory Federal rates |  |  | 34 | % |  |  | 34 | %
Increase (decrease) in income tax rate resulting from: |  |  |  |  |  |  |  |
Tax on foreign activities |  |  | 3 |  |  |  | 8 |
Other, net (primarily permanent differences) |  |  | (2 | ) |  |  | (4 | )
Valuation allowance |  |  | (36 | ) |  |  | (40 | )
Effective income tax rates |  |  | (1 | )% |  |  | (2 | )%
Schedule of Deferred Tax Assets and Liabiliites | Analysis of Deferred Tax Assets and (Liabilities)
|  | As of December 31, |
|  | 2013 |  |  | 2014 |
Deferred tax assets consist of the following: |  |  |  |  |  |  |  |
Employee benefits and deferred compensation |  | $ | 1,679 |  |  | $ | 1,714 |
Asset impairments |  |  | 2,693 |  |  |  | 2,693 |
Other temporary differences |  |  | 262 |  |  |  | (186 | )
Net operating loss carryforwards |  |  | 9,713 |  |  |  | 17,739 |
|  |  | 14,347 |  |  |  | 21,960 |
Valuation allowance |  |  | (13,758 | ) |  |  | (21,473 | )
Net deferred tax assets |  | $ | 589 |  |  | $ | 487 |
Summary of Tax Loss Carryforwards | As of December 31, 2014, the Company had various net operating loss carryforwards expiring as follows:
Expiration |  | Federal* |  |  | State |  |  | Foreign |
2022-2034 |  | $ | 48,255 |  |  | $ | 20,854 |  |  | $ | — |
Unlimited |  |  | — |  |  |  | — |  |  |  | 508 |
Total |  | $ | 48,255 |  |  | $ | 20,854 |  |  | $ | 508 |
* The utilization of a portion of these net operating loss carryforwards is limited to a total of approximately $73 per year due to limits on utilizing the acquired net operating loss carryforwards under Internal Revenue Service regulations following a change in control.

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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- Definition Tabular disclosure of pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss carryforwards, including an assessment of the likelihood of utilization. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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