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Income Taxes | 9 Months Ended
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Sep. 30, 2015
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes For the three and nine months ended September 30, 2015 and 2014, the Company's income tax expense and effective tax rates on forecasted pretax losses were:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
(in thousands, except for rate) |  | 2015 |  | 2014 |  | 2015 |  | 2014
Income tax expense |  | $ | 44 |  |  | $ | 113 |  |  | $ | 151 |  |  | $ | 155 |
Effective tax rate |  | (1 | )% |  | (3 | )% |  | (1 | )% |  | (5 | )%
The effective tax rates for the three and nine months ended September 30, 2015 and 2014 were different from the statutory rate primarily due to an increase in the Company's valuation allowances against federal and state net operating losses and federal tax credits, which was partially offset by estimated state tax expense. The Company projects that its deferred tax assets will exceed its deferred tax liabilities as of December 31, 2015. As a result, the Company determined that it is not more likely than not that it would be able to realize the value of its federal and state net operating loss carryforwards, tax credits and other deferred tax assets and has recorded a full valuation allowance against the excess deferred tax assets. This valuation allowance is expected to increase over time as the Company's deferred tax assets increase.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: 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 Reference 3: 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 Reference 4: 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 Reference 5: 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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