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5. INCOME TAXES (Tables) | 12 Months Ended
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Mar. 31, 2017
INCOME TAXES |
Loss before provision (benefit) for income taxes |
|  | Year Ended March 31, |
|  | 2017 |  | 2016 |  | 2015 |
|  | (In thousands) |
Loss before income taxes: |  |  |  |  |  |  |  |  |  |
U.S. |  | $ | (4,938) |  | $ | (3,426) |  | $ | (6,910) |
Foreign |  |  | 4,889 |  |  | 615 |  |  | 1,257 |
|  | $ | (49) |  | $ | (2,811) |  | $ | (5,653) |
Current income tax expense (benefit): |  |  |  |  |  |  |  |  |  |
U.S. federal |  | $ | (14) |  | $ | (354) |  | $ | (619) |
Foreign |  |  | 736 |  |  | 15 |  |  | (2) |
State |  |  | 4 |  |  | (289) |  |  | (54) |
|  |  | 726 |  |  | (628) |  |  | (675) |
Deferred income tax expense (benefit): |  |  |  |  |  |  |  |  |  |
U.S. federal |  |  | 14 |  |  | (3) |  |  | — |
Foreign |  |  | (674) |  |  | (10) |  |  | — |
|  |  | (660) |  |  | (13) |  |  | — |
Provision (benefit) for income taxes |  | $ | 66 |  | $ | (641) |  | $ | (675) |
Income tax reconciliation |
|  | Year Ended March 31, |
|  | 2017 |  | 2016 |  | 2015 |
|  | (In thousands) |
U.S. Federal taxes at statutory rate |  | $ | (17) |  | $ | (956) |  | $ | (1,922) |
State taxes, net of federal benefit |  |  | 3 |  |  | (204) |  |  | (39) |
Stock-based compensation |  |  | 630 |  |  | 470 |  |  | 447 |
Tax credits |  |  | (398) |  |  | (539) |  |  | (472) |
Foreign tax rate differential |  |  | (1,525) |  |  | (368) |  |  | (916) |
Tax exempt interest |  |  | (5) |  |  | (9) |  |  | (20) |
Non-deductible expenses and other |  |  | 24 |  |  | 6 |  |  | (35) |
|  |  | (1,288) |  |  | (1,600) |  |  | (2,957) |
Valuation allowance |  |  | 1,354 |  |  | 959 |  |  | 2,282 |
|  | $ | 66 |  | $ | (641) |  | $ | (675) |
Deferred tax assets and deferred tax liabilities |
|  | March 31, |
|  | 2017 |  | 2016 |
|  | (In thousands) |
Deferred tax assets: |  |  |  |  |  |  |
Deferred revenue |  | $ | 330 |  | $ | 231 |
Tax credits |  |  | 3,387 |  |  | 2,706 |
Net operating losses |  |  | 2,264 |  |  | 1,356 |
Stock-based compensation |  |  | 1,386 |  |  | 1,550 |
Property and equipment |  |  | 425 |  |  | 297 |
Other reserves and accruals |  |  | 1,167 |  |  | 1,175 |
Total deferred tax assets |  | $ | 8,959 |  | $ | 7,315 |
Deferred tax liabilities: |  |  |  |  |  |  |
Intangible assets |  | $ | (13) |  | $ | (856) |
Unrecognized gains |  |  | — |  |  | (14) |
Total deferred tax liabilities |  | $ | (13) |  | $ | (870) |
Net deferred tax assets |  | $ | 8,946 |  | $ | 6,445 |
Valuation allowance |  |  | (8,939) |  |  | (7,256) |
Net deferred tax asset (liability) |  | $ | 7 |  | $ | (811) |
Unrecognized tax benefits |
|  | Year Ended March 31, |
|  | 2017 |  | 2016 |  | 2015 |
|  | (In thousands) |
Unrecognized tax benefits, beginning of period |  | $ | 2,055 |  | $ | 1,982 |  | $ | 2,386 |
Additions based on tax positions related to current year |  |  | 730 |  |  | 453 |  |  | 292 |
Additions based on tax positions related to prior years |  |  | — |  |  | 183 |  |  | — |
Settlements during the current year |  |  | — |  |  | — |  |  | — |
Lapses during the current year applicable to statutes of limitations |  |  | (71) |  |  | (563) |  |  | (696) |
Unrecognized tax benefits, end of period |  | $ | 2,714 |  | $ | 2,055 |  | $ | 1,982 |

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