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v3.25.2

Business Segment Information (Tables) | 3 Months Ended
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Jun. 30, 2025
Segment Reporting [Abstract] |
Summary of Disaggregated Expense |
| Three Months Ended |  |  | Three Months Ended |
| June 30, 2025 |  |  | June 30, 2024 |
Revenue |  |  |  |  |
Royalty revenue | $ | 37 |  |  | $ | 25 |
Product revenue |  | — |  |  |  | 14 |
Total revenue |  | 37 |  |  |  | 39 |
Operating expenses |  |  |  |  |
Cost of revenues |  | — |  |  |  | 2 |
Research and development expenses (a)(b) |  | 932 |  |  |  | 1,318 |
Selling, general, and administrative expenses (a)(b) |  | 1,881 |  |  |  | 1,879 |
Non-cash stock-based compensation (see Note 4) |  | 78 |  |  |  | 156 |
Depreciation and amortization |  | 61 |  |  |  | 70 |
Total operating expense | $ | 2,952 |  |  | $ | 3,425 |
Consolidated operating loss | $ | (2,915 | ) |  | $ | (3,386 | )

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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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