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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2018
Income Tax Disclosure [Abstract] |
Schedule of Provision for Income Taxes | Our provisions for income taxes included current federal, foreign and state income tax expense, as well as deferred tax expense as follows (in thousands):
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |  |  | 2016 |
Current |  |  |  |  |  |  |  |  |  |  |  |
Federal |  | $ | — |  |  | $ | (184 | ) |  | $ | 3,684 |
State |  |  | 1,103 |  |  |  | 258 |  |  |  | 555 |
Foreign |  |  | 540 |  |  |  | 652 |  |  |  | 599 |
Deferred |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | 3,011 |  |  |  | 10,262 |  |  |  | (1,337 | )
State |  |  | 224 |  |  |  | (291 | ) |  |  | (169 | )
Foreign |  |  | (410 | ) |  |  | (355 | ) |  |  | (577 | )
|  | $ | 4,468 |  |  | $ | 10,342 |  |  | $ | 2,755 |
Reconciliation of the Provision for Income Taxes to the Statutory Federal Rate | A reconciliation of the expected federal income tax at the statutory rate to the provision for income taxes was as follows (in thousands):
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |  |  | 2016 |
Expected federal income tax at statutory rate |  | $ | 5,951 |  |  | $ | 3,635 |  |  | $ | 2,662 |
State income taxes, net of federal tax effect |  |  | 1,293 |  |  |  | 417 |  |  |  | 284 |
Tax impact of foreign activity |  |  | 57 |  |  |  | (105 | ) |  |  | (115 | )
Nondeductible executive compensation |  |  | 902 |  |  |  | 530 |  |  |  | 159 |
Nondeductible expenses |  |  | 351 |  |  |  | 268 |  |  |  | 213 |
Change in valuation allowance |  |  | (4 | ) |  |  | 16 |  |  |  | (35 | )
Change in state deferred rate |  |  | 38 |  |  |  | (134 | ) |  |  | (67 | )
Research and development credit |  |  | (1,843 | ) |  |  | (227 | ) |  |  | (261 | )
Tax impact of Tax Cuts and Jobs Act |  |  | — |  |  |  | 6,796 |  |  |  | — |
Tax impact of stock activity |  |  | (2,438 | ) |  |  | (925 | ) |  |  | — |
Other |  |  | 161 |  |  |  | 71 |  |  |  | (85 | )
Total provision for income taxes |  | $ | 4,468 |  |  | $ | 10,342 |  |  | $ | 2,755 |
Significant Components of Deferred Tax Assets (Liabilities) | The significant components of our deferred tax assets (liabilities) were as follows (in thousands):
|  | December 31, |
|  | 2018 |  |  | 2017 |
Deferred tax assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss and credit carryforwards |  | $ | 8,356 |  |  |  |  |  |  | $ | 11,067 |  |  |  |  |
Stock-based compensation expense |  |  | 3,647 |  |  |  |  |  |  |  | 4,273 |  |  |  |  |
Accounts receivable allowances |  |  | 464 |  |  |  |  |  |  |  | 307 |  |  |  |  |
Accrued expenses |  |  | 3,185 |  |  |  |  |  |  |  | 2,126 |  |  |  |  |
Other |  |  | 180 |  |  |  |  |  |  |  | 182 |  |  |  |  |
Gross deferred tax asset |  |  |  |  |  |  | 15,832 |  |  |  |  |  |  |  | 17,955 |
Less: valuation allowance |  |  | (797 | ) |  |  |  |  |  |  | (602 | ) |  |  |  |
Total net deferred tax asset |  |  |  |  |  |  | 15,035 |  |  |  |  |  |  |  | 17,353 |
Deferred tax liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred operations |  |  | (2,787 | ) |  |  |  |  |  |  | (3,850 | ) |  |  |  |
Foreign operations |  |  | (135 | ) |  |  |  |  |  |  | (133 | ) |  |  |  |
Depreciation and amortization |  |  | (2,943 | ) |  |  |  |  |  |  | (1,536 | ) |  |  |  |
Other |  |  | (90 | ) |  |  |  |  |  |  | (24 | ) |  |  |  |
Total deferred tax liability |  |  |  |  |  |  | (5,955 | ) |  |  |  |  |  |  | (5,543 | )
Net deferred tax assets |  |  |  |  |  | $ | 9,080 |  |  |  |  |  |  | $ | 11,810 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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