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Income taxes (Tables) | 12 Months Ended
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Mar. 31, 2024
Income Taxes - Open [Abstract] |
Schedule of Reconciliation of Income Taxes Provided at the Federal Statutory Rate | The income tax provision consisted of the following:
|  | Year Ended March 31, |
|  | 2024 |  |  | 2023 |
|  | (in thousands) |
Current portion: |  |  |  |  |  |
Federal |  | $ | — |  |  | $ | — |
State |  |  | 2 |  |  |  | 2 |
|  |  | 2 |  |  |  | 2 |
Deferred portion: |  |  |  |  |  |  |  |
Federal |  |  | (3,730 | ) |  |  | (2,933 | )
State |  |  | (657 | ) |  |  | (1,467 | )
|  |  | (4,387 | ) |  |  | (4,400 | )
Change in valuation allowance |  |  | 4,387 |  |  |  | 4,400 |
Provision for income taxes |  | $ | 2 |  |  | $ | 2 |
Schedule of Reconciliation of Income Taxes Provided at the Federal Statutory Rate | A reconciliation of income taxes provided at the federal statutory rate to the actual income tax provision is as follows:
|  | Year Ended March 31, |
|  | 2024 |  |  | 2023 |
Federal statutory rate |  |  | (21 | )% |  |  | (21 | )%
State tax rate, net of federal benefit |  |  | (6 | )% |  |  | (6 | )%
Research and development tax credits |  |  | (7 | )% |  |  | (6 | )%
Change in valuation allowance |  |  | 32 | % |  |  | 29 | %
Other |  |  | 2 | % |  |  | 4 | %
Effective income tax rate |  |  | — | % |  |  | — | %
Schedule of Significant Components of the Company’s Deferred Tax Assets and Liabilities | The losses before income tax provision for the years ended March 31, 2024 and 2023 were solely attributable to US operations. Significant components of the Company’s deferred tax assets and liabilities were (in thousands):
|  | March 31, |
|  | 2024 |  |  | 2023 |
Net operating loss carryforwards |  | $ | 10,860 |  |  | $ | 8,742 |
Capitalized research and development expense |  |  | 3,058 |  |  |  | 1,933 |
Stock-based compensation expense |  |  | 2,818 |  |  |  | 2,587 |
Research and development tax credits |  |  | 2,568 |  |  |  | 1,658 |
Property and equipment |  |  | 193 |  |  |  | 105 |
Total deferred tax assets |  |  | 19,497 |  |  |  | 15,025 |
Section 179 assets |  |  | (239 | ) |  |  | (111 | )
Reserves, accruals and other |  |  | (49 | ) |  |  | (92 | )
Total deferred tax liabilities |  |  | (288 | ) |  |  | (203 | )
Less: valuation allowance |  |  | (19,209 | ) |  |  | (14,822 | )
Deferred tax assets, net |  | $ | — |  |  | $ | — |

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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/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + 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://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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