Business Segment Information - Summary of Operating Segment Costs and Expenses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Research and development expenses	$ 984	$ 1,335	$ 2,386	$ 3,001
Selling, general, and administrative expenses	1,653	2,780	3,674	5,384
Total costs and expenses	2,638	4,115	6,063	8,385
Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segment costs and expenses	1,053	1,335	2,524	3,001
Other selling, general, and administrative expenses	1,585	2,780	3,539	5,384
Total costs and expenses	2,638	4,115	6,063	8,385
Operating Segments [Member] \| R&D [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Research and development expenses	934	1,335	2,110	3,001
Operating Segments [Member] \| Mosaic [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Research and development expenses	50	0	276	0
Cost of revenues	1	0	3	0
Selling, general, and administrative expenses	$ 68	$ 0	$ 135	$ 0

The aggregate cost of goods produced and sold and services rendered during the reporting period.

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