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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2017
Income Tax Disclosure [Abstract] |
Schedule of Income (Loss) before Income Tax Expense by Jurisdiction | The components of income before income tax expense are as follows (in thousands):
| Year Ended December 31,
| 2017 |  | 2016 |  | 2015
U.S. | $ | 6,953 |  |  | $ | 7,525 |  |  | $ | 3,442 |
Foreign | (2,235 | ) |  | 2,474 |  |  | (864 | )
| $ | 4,718 |  |  | $ | 9,999 |  |  | $ | 2,578 |
Schedule of Income Tax Expense | The deferred tax provision results from changes in the Company’s deferred tax assets (future deductible amounts) and tax liabilities (future taxable amounts), which are presented in the table below:
| Current |  | Deferred |  | Total
| (In thousands)
Year Ended December 31, 2017 |  |  |  |  |
Federal | $ | 1,988 |  |  | $ | 24 |  |  | $ | 2,012 |
State | 198 |  |  | (64 | ) |  | 134 |
Foreign | 905 |  |  | 75 |  |  | 980 |
| $ | 3,091 |  |  | $ | 35 |  |  | $ | 3,126 |
Year Ended December 31, 2016 |  |  |  |  |
Federal | $ | 2,403 |  |  | $ | (123 | ) |  | $ | 2,280 |
State | 395 |  |  | 23 |  |  | 418 |
Foreign | 1,391 |  |  | (97 | ) |  | 1,294 |
| $ | 4,189 |  |  | $ | (197 | ) |  | $ | 3,992 |
Year Ended December 31, 2015 |  |  |  |  |
Federal | $ | (6,475 | ) |  | $ | (238 | ) |  | $ | (6,713 | )
State | 281 |  |  | 51 |  |  | 332 |
Foreign | 454 |  |  | (18 | ) |  | 436 |
| $ | (5,740 | ) |  | $ | (205 | ) |  | $ | (5,945 | )
Schedule of Tax Expense to Effective Tax Rate | Income tax expense differed from the amounts computed by applying the U.S. federal statutory tax rate applicable to the Company’s level of pretax income as a result of the following (in thousands):
| Year Ended December 31,
| 2017 |  | 2016 |  | 2015
Federal tax at statutory rates | $ | 1,651 |  |  | $ | 3,500 |  |  | $ | 902 |
State taxes, net of federal income tax benefit | 113 |  |  | 276 |  |  | 219 |
Change of valuation allowance | 1,577 |  |  | 895 |  |  | 816 |
Uncertain tax positions | (907 | ) |  | (132 | ) |  | (7,935 | )
Foreign income taxed at different rates | 72 |  |  | (509 | ) |  | (124 | )
U.S. tax reform (the Tax Act) | 681 |  |  | — |  |  | — |
Tax on undistributed earnings | (173 | ) |  | — |  |  | — |
Non-deductible expenses and other | 112 |  |  | (38 | ) |  | 177 |
Total income tax expense | $ | 3,126 |  |  | $ | 3,992 |  |  | $ | (5,945 | )
Schedule of Deferred Tax Assets and Liabilities | The tax effects of temporary differences that give rise to significant portions of the Company’s deferred tax assets and liabilities are as follows (in thousands):
| December 31,
| 2017 |  | 2016
Deferred tax assets: |  |  |
Net operating loss carryforwards | $ | 9,250 |  |  | $ | 7,239 |
State income taxes | 65 |  |  | 159 |
Accruals and allowances | 287 |  |  | 447 |
Stock based compensation | 744 |  |  | 771 |
Unrealized foreign exchange losses | 191 |  |  | 149 |
Deferred revenue | 87 |  |  | 113 |
Deferred rent | 418 |  |  | 625 |
Total deferred tax assets | 11,042 |  |  | 9,503 |
Valuation allowance | (9,249 | ) |  | (7,168 | )
Total deferred tax assets net of valuation allowance | 1,793 |  |  | 2,335 |
Deferred tax liabilities: |  |  |
U.S. tax on undistributed earnings | — |  |  | (173 | )
Property, equipment and intangible assets | (277 | ) |  | (351 | )
Total deferred tax liabilities | (277 | ) |  | (524 | )
Net deferred tax assets | $ | 1,516 |  |  | $ | 1,811 |
Changes in the Deferred Tax Assets Valuation Allowance | Changes in the deferred tax assets valuation allowance for the years ended December 31, 2015, 2016 and 2017 are as follows (in thousands):
| Balance at the beginning of the year |  | Charged (Credited) to expenses |  | Charged (Credited) to other account (*) |  | Balance at end of year
Deferred tax assets valuation allowance |  |  |  |  |  |  |
2015 | $ | 6,431 |  |  | 816 |  |  | (307 | ) |  | $ | 6,940 |
2016 | $ | 6,940 |  |  | 895 |  |  | (667 | ) |  | $ | 7,168 |
2017 | $ | 7,168 |  |  | 1,577 |  |  | 504 |  |  | $ | 9,249 |
(*) Amounts not charged (credited) to expenses are charged (credited) to stockholder's equity or deferred tax assets (liabilities).
Rollforward of Unrecognized Tax Benefits | A reconciliation of the beginning and ending amount of gross unrecognized tax benefits in 2015, 2016, and 2017 is as follows (in thousands):
Gross unrecognized tax benefits balance at January 1, 2015 | $ | 10,025 |
Increase related to prior year tax positions | 898 |
Decrease related to prior year tax positions | — |
Increase related to current year tax positions | 11 |
Settlements | — |
Lapse of statute of limitations | (8,264 | )
Gross unrecognized tax benefits balance at December 31, 2015 | 2,670 |
Increase related to prior year tax positions | 10 |
Decrease related to prior year tax positions | — |
Increase related to current year tax positions | — |
Settlements | — |
Lapse of statute of limitations | (323 | )
Gross unrecognized tax benefits balance at December 31, 2016 | 2,357 |
Increase related to prior year tax positions | 21 |
Decrease related to prior year tax positions | (737 | )
Increase related to current year tax positions | 4 |
Settlements | (920 | )
Lapse of statute of limitations | — |
Gross unrecognized tax benefits balance at December 31, 2017 | $ | 725 |

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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://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=84230637&loc=d3e32639-109319 + Details
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