v3.3.1.900

Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Components of loss before income taxes |  |  |
Domestic | $ (26,733) | $ (28,999) | $ (27,953)
Loss before income taxes | $ (26,733) | $ (28,999) | $ (27,953)
Reconciliation between statutory federal income tax rate and the effective tax rate |  |  |
U.S. statutory federal income tax rate (as a percent) | 35.00% | 35.00% | 35.00%
U.S. state income taxes, net of federal benefits (as a percent) | 7.70% | 5.80% | 7.30%
Non-deductible expenses (as a percent) | (2.00%) | (2.80%) | (2.10%)
Change in valuation allowance (as a percent) | (39.10%) | (32.40%) | (39.90%)
Other (as a percent) | (1.60%) | (5.60%) | (0.30%)
Effective tax rate (as a percent) | 0.00% | 0.00% | 0.00%
Deferred tax assets: |  |  |
Accrued expenses and other | $ 1,899 | $ 1,054 |
Accrued compensation and related benefits | 3,306 | 2,502 |
Rebate reserve | 167 | 264 |
Deferred rent | 282 | 212 |
Stock-based compensation | 4,971 | 2,782 |
Net operating loss carryforwards | 54,967 | 46,264 |
Valuation allowance | (54,739) | (44,309) |
Total deferred tax assets | 10,853 | 8,769 |
Deferred tax liabilities: |  |  |
Other expenses | (875) | (1,344) |
Capitalized content development costs | (7,583) | (5,439) |
Capitalized software development costs | (1,886) | (1,346) |
Property and equipment | (509) | (640) |
Total deferred tax liabilities | $ (10,853) | $ (8,769) |

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