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Business Segment Information (Tables)

6 Months Ended

Sep. 30, 2025

Segment Reporting [Abstract]

Summary of Disaggregated Expense

	Three Months Ended				Three Months Ended				Six Months Ended				Six Months Ended
	September 30, 2025				September 30, 2024				September 30, 2025				September 30, 2024
Revenue
Royalty revenue	$	28			$	28			$	65			$	53
Product revenue		—				2				—				16
Total revenue		28				30				65				69
Operating expenses
Cost of revenues		—				1				—				3
Research and development expenses (a)(b)		855				902				1,787				2,220
Selling, general, and administrative expenses (a)(b)		1,677				1,511				3,558				3,391
Non-cash stock-based compensation (see Note 4)		72				155				150				311
Depreciation and amortization		59				69				120				138
Total operating expense	$	2,663			$	2,638			$	5,615			$	6,063
Consolidated operating loss	$	(2,635	)		$	(2,608	)		$	(5,550	)		$	(5,994	)

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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

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X

- References

No definition available.

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