| Income Tax Disclosure [Abstract] | Period [Axis] |
|---|
2016-01-01 - 2016-12-31 |
|---|
Income Tax Disclosure [Abstract] | |
Schedule of Components of Income Tax Expense (Benefit) | The components of our income tax expense are as follows (in thousands): | | | | | | | | | | | Year Ended December 31, | | 2016 | | 2015 | | 2014 | Current | | | | | | Federal | 7,227 |
| | 7,730 |
| | 7,266 |
| State | 1,829 |
| | 1,519 |
| | 1,286 |
| Total Current | 9,056 |
| | 9,249 |
| | 8,552 |
| Deferred | | | | | | Federal | (4,283 | ) | | (3,372 | ) | | (1,702 | ) | State | (546 | ) | | (180 | ) | | (33 | ) | Total Deferred | (4,829 | ) | | (3,552 | ) | | (1,735 | ) | Total | 4,227 |
| | 5,697 |
| | 6,817 |
|
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Schedule of Effective Income Tax Rate Reconciliation | The difference between the income tax expense at the Federal statutory rate and income tax expense in the accompanying consolidated statements of operations is as follows: | | | | | | | | | | | Year Ended December 31, | | 2016 | | 2015 | | 2014 | Federal statutory rate | 35.0 | % | | 35.0 | % | | 35.0 | % | State income tax expense, net of Federal benefits | 4.9 |
| | 4.5 |
| | 4.0 |
| Nondeductible meals and entertainment | 1.6 |
| | 1.2 |
| | 0.9 |
| Research and development tax credits | (10.8 | ) | | (8.9 | ) | | (6.2 | ) | Other | (1.3 | ) | | 0.8 |
| | (0.2 | ) | Effective Rate | 29.4 | % | | 32.6 | % | | 33.5 | % |
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Schedule of Components of Deferred Tax Assets and Liabilities | The components of our net deferred tax assets (liabilities) are as follows (in thousands): | | | | | | | | | | December 31, | | 2016 | | 2015 | Deferred tax assets, non-current | | | | Provision for doubtful accounts | $ | 1,046 |
| | $ | 1,345 |
| Accrued expenses | 2,622 |
| | 2,936 |
| Deferred revenue | 3,627 |
| | 3,416 |
| Deferred rent | 4,671 |
| | 3,331 |
| Stock-based compensation | 3,468 |
| | 2,233 |
| Acquisition costs | 4,482 |
| | 126 |
| Subsidiary unit compensation | 1,566 |
| | 425 |
| Equity investments | 182 |
| | 180 |
| Inventory reserve | — |
| | 123 |
| Net operating losses | 2,678 |
| | 3,183 |
| Other | 107 |
| | — |
| Total deferred tax assets, non-current | 24,449 |
| | 17,298 |
| Deferred tax liabilities, non-current | | | | Intangible assets and prepaid patent licenses | (2,780 | ) | | (2,098 | ) | Depreciation | (4,649 | ) | | (3,105 | ) | Contingent Liability | (268 | ) | | (180 | ) | Total deferred tax liabilities | $ | (7,697 | ) | | $ | (5,383 | ) | Net deferred tax assets | $ | 16,752 |
| | $ | 11,915 |
|
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Schedule of Unrecognized Tax Benefits Roll Forward | A reconciliation of the beginning and ending amounts of unrecognized tax benefits (without related interest expense) is as follows (in thousands): | | | | | | | | | | | | | | Year Ended December 31, | | 2016 | | 2015 | | 2014 | Beginning balance | $ | 506 |
| | $ | 208 |
| | $ | — |
| Additions based on tax positions of the current year | 197 |
| | 152 |
| | 69 |
| Additions based on tax positions of prior year | 79 |
| | 146 |
| | 139 |
| Decreases related to settlements of prior year tax positions | (101 | ) | | — |
| | — |
| Ending balance | $ | 681 |
| | $ | 506 |
| | $ | 208 |
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