v2.4.1.9

Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2014
Income Tax Disclosure [Abstract] |
Schedule of Reconciliation of Difference between Benefit for Income Taxes and Income Taxes at Statutory U.S. Federal Income Tax Rate | A reconciliation of the difference between the benefit for income taxes and income taxes at the statutory U.S. federal income tax rate is as follows:
|  | Year Ended December 31, |
|  | 2014 |  |  | 2013 |  |  | 2012 |
Federal tax at statutory rate |  |  | 34.0 | % |  |  | 34.0 | % |  |  | 34.0 | %
Stock based compensation |  |  | -9.5 | % |  |  | -11.4 | % |  |  | 0.0 | %
Change in valuation allowance |  |  | 190.6 | % |  |  | -8.6 | % |  |  | -30.9 | %
Change in unrecognized tax benefits |  |  | 0.0 | % |  |  | -8.4 | % |  |  | 0.0 | %
Preferred stock warrant revaluation |  |  | -0.7 | % |  |  | -5.0 | % |  |  | 0.0 | %
Interest expense |  |  | -5.8 | % |  |  | 0.0 | % |  |  | -2.3 | %
Contingent liability for IMX acquisition |  |  | 38.2 | % |  |  | 0.0 | % |  |  | 0.0 | %
IMX acquisition costs |  |  | -36.7 | % |  |  | 0.0 | % |  |  | 0.0 | %
Other |  |  | -1.3 | % |  |  | -0.6 | % |  |  | -0.8 | %
Effective income tax rate |  |  | 208.8 | % |  |  | 0.0 | % |  |  | 0.0 | %
Schedule of Tax Effects of Temporary Differences and Carryforwards that Rise to Significant Deferred Tax Assets and Liabilities | The tax effects of temporary differences and carryforwards that give rise to significant deferred tax assets and liabilities are as follows (in thousands):
|  | As of December 31, |
|  | 2014 |  |  | 2013 |
Deferred tax assets: |  |  |  |  |  |  |  |
Net operating loss carryforwards |  | $ | 63,116 |  |  | $ | 62,863 |
Tax credit carryforwards |  |  | 4,065 |  |  |  | 3,973 |
Accruals |  |  | 942 |  |  |  | 1,097 |
Property and equipment |  |  | — |  |  |  | 147 |
Other |  |  | 551 |  |  |  | 97 |
Gross deferred tax assets |  |  | 68,674 |  |  |  | 68,177 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Property and equipment |  |  | (8 | ) |  |  | — |
Purchased Intangible |  |  | (2,349 | ) |  |  | — |
Total deferred tax liabilities |  |  | (2,357 | ) |  |  | — |
Valuation allowance |  |  | (66,317 | ) |  |  | (68,177 | )
Net deferred tax assets |  | $ | — |  |  | $ | — |
Schedule of Reconciliation of Unrecognized Tax Benefits | A reconciliation of the Company’s unrecognized tax benefits is as follows (in thousands):
|  | Year Ended December 31, |
|  | 2014 |  |  | 2013 |  |  | 2012 |
Balance at beginning of year |  | $ | 2,196 |  |  | $ | 1,159 |  |  | $ | 1,130 |
Additions based on tax positions related to current year |  |  | 83 |  |  |  | 177 |  |  |  | 53 |
Additions (reductions) based on tax positions related to prior years |  |  | (225 | ) |  |  | 860 |  |  |  | (24 | )
Balance at end of year |  | $ | 2,054 |  |  | $ | 2,196 |  |  | $ | 1,159 |

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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 tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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