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Income Taxes (Tables) | 12 Months Ended
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Jan. 31, 2018
Income Tax Disclosure [Abstract] |
Reconciliation of Income Taxes by Jurisdiction |
| Years Ended January 31,
| 2018 |  | 2017 |  | 2016
| (in thousands)
Loss before income taxes is attributable to the following jurisdictions: |  |  |  |  |
Domestic | $ | (12,246 | ) |  | $ | (17,685 | ) |  | $ | (11,900 | )
Foreign | (7,913 | ) |  | (13,654 | ) |  | (15,859 | )
Total | $ | (20,159 | ) |  | $ | (31,339 | ) |  | $ | (27,759 | )
The components of income tax expense (benefit) were as follows: |  |  |  |  |
Current: |  |  |  |  |
Domestic | $ | (225 | ) |  | $ | 34 |  |  | $ | (16 | )
Foreign | 1,156 |  |  | 846 |  |  | 684 |
| 931 |  |  | 880 |  |  | 668 |
Deferred: |  |  |  |  |
Domestic | (36 | ) |  | 40 |  |  | 10,762 |
Foreign | 15 |  |  | 894 |  |  | (453 | )
| (21 | ) |  | 934 |  |  | 10,309 |
Income tax expense | $ | 910 |  |  | $ | 1,814 |  |  | $ | 10,977 |
Reconciliation of Expected to Actual Income Tax Expense | The following is a reconciliation of expected to actual income tax expense:
| Years Ended January 31,
| 2018 |  | 2017 |  | 2016
| (in thousands)
Federal income tax at 32.9%, 34%, 34%, respectively | $ | (6,632 | ) |  | $ | (10,655 | ) |  | $ | (9,436 | )
Changes in tax rates | 7,257 |  |  | — |  |  | (82 | )
Permanent differences | 3,356 |  |  | 38 |  |  | 509 |
Foreign effective tax rate differential | 1,163 |  |  | 1,979 |  |  | 1,609 |
Potential tax, penalties and interest resulting from uncertain tax positions | — |  |  | — |  |  | (236 | )
Foreign withholding taxes, foreign branch taxes, including penalties and interest | 716 |  |  | 671 |  |  | 717 |
Election to deduct foreign taxes in prior years U.S. income tax returns | — |  |  | — |  |  | 2,610 |
Valuation allowance on deferred tax assets | (5,765 | ) |  | 10,056 |  |  | 15,477 |
Excess tax deficiency for share-based payments under ASU 2016-09 | 309 |  |  | — |  |  | — |
Other | 506 |  |  | (275 | ) |  | (191 | )
| $ | 910 |  |  | $ | 1,814 |  |  | $ | 10,977 |
Company's Deferred Taxes | The components of the Company’s deferred taxes consisted of the following:
| As of January 31,
| 2018 |  | 2017
| (in thousands)
Deferred tax assets: |  |  |
Net operating losses | $ | 14,292 |  |  | $ | 17,666 |
Tax credit carry forwards | 693 |  |  | 894 |
Stock option book expense | 1,381 |  |  | 2,259 |
Allowance for doubtful accounts | 1,521 |  |  | 2,098 |
Allowance for inventory obsolescence | 430 |  |  | 437 |
Accruals not yet deductible for tax purposes | 611 |  |  | 691 |
Fixed assets | 1,325 |  |  | 1,266 |
Other | 901 |  |  | 1,046 |
Gross deferred tax assets | 21,154 |  |  | 26,357 |
Valuation allowance | (21,154 | ) |  | (26,357 | )
Deferred tax assets | — |  |  | — |
Deferred tax liabilities: |  |  |
Intangible assets | — |  |  | (150 | )
Other | (307 | ) |  | (167 | )
Deferred tax liabilities | (307 | ) |  | (317 | )
Unrecognized tax benefits | — |  |  | — |
Total deferred tax (liabilities) assets, net | (307 | ) |  | $ | (317 | )
Unrecognized Tax Benefits Excluding Potential Penalties and Interest | A reconciliation of the beginning and ending amounts of unrecognized tax benefits, excluding potential penalties and interest, is as follows:
| Years Ended January 31,
| 2018 |  | 2017 |  | 2016
| (in thousands)
Unrecognized tax benefits as of beginning of year | $ | — |  |  | $ | — |  |  | $ | 92 |
Increases as a result of tax positions taken in prior years | — |  |  | — |  |  | — |
Increases as a result of tax positions taken in current year | — |  |  | — |  |  | — |
Settlements | — |  |  | — |  |  | (44 | )
Lapse of statute of limitations | — |  |  | — |  |  | (48 | )
Unrecognized tax benefits as of end of year | $ | — |  |  | $ | — |  |  | $ | — |

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