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Business Segment Information (Tables) | 12 Months Ended
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Mar. 31, 2026
Segment Reporting [Abstract] |
Summary of Disaggregated Expense | In addition to the significant expense categories included within Consolidated Net Loss presented in the Company’s Consolidated Statements of Operations and Other Comprehensive Loss, see below for disaggregated expense amounts for the years ended March 31, 2026 and 2025 (in thousands):
| Year Ended |  |  | Year Ended |
| March 31, 2026 |  |  | March 31, 2025 |
Revenue |  |  |  |  |
Royalty revenue | $ | 131 |  |  | $ | 119 |
Product revenue |  | — |  |  |  | 25 |
Total revenue |  | 131 |  |  |  | 144 |
Operating expenses |  |  |  |  |
Cost of revenues |  | — |  |  |  | 5 |
Research and development (a) (b) |  | 3,934 |  |  |  | 4,712 |
Selling, general, and administrative expenses (a)(b) |  | 7,166 |  |  |  | 7,245 |
Non-cash stock-based compensation (see Note 6) |  | 303 |  |  |  | 532 |
Depreciation and amortization (see Note 3) |  | 215 |  |  |  | 266 |
Total operating expenses | $ | 11,618 |  |  | $ | 12,760 |
Consolidated operating loss | $ | (11,487 | ) |  | $ | (12,616 | )
(a) Stock-based compensation expense of $56,000 and $86,000 related to research and development and $247,000 and $446,000, related to selling, general, and administration have been excluded for the years ended March 31, 2026 and 2025, respectively. (b) Depreciation and amortization expense of $199,000 and $227,000 related to research and development and $16,000 and $39,000 related to selling, general, and administration have been excluded for the years ended March 31, 2026 and 2025, respectively.

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-25 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 + Details
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