v3.26.1
Business Segment Information - Summary of Disaggregated Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]    
Total Revenues $ 18 $ 37
Operating expenses    
Research and development expenses 1,132 1,001
Selling, general and administrative expenses 1,645 1,951
Royalty [Member]    
Segment Reporting [Line Items]    
Total Revenues 18 37
Operating Segments [Member]    
Segment Reporting [Line Items]    
Total Revenues 18 37
Operating expenses    
Research and development expenses 1,082 932
Selling, general and administrative expenses 1,564 1,881
Non-cash stock-based compensation 91 78
Depreciation and amortization 40 61
Total operating expense 2,777 2,952
Consolidated operating loss (2,759) (2,915)
Operating Segments [Member] | Royalty [Member]    
Segment Reporting [Line Items]    
Total Revenues $ 18 $ 37