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Consolidated Statements of Operations and Other Comprehensive Loss - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Revenues    
Total Revenues $ 144 $ 109
Cost of revenues 5  
Research and development expenses 5,025 5,498
Selling, general, and administrative expenses 7,730 9,697
Total costs and expenses 12,760 15,195
Loss from Operations (12,616) (15,086)
Other Income (Expense)    
Gain on investment in equity securities 0 12
Gain on sale of asset 10,000  
Interest income 140 405
Interest expense (10)  
Total Other Income 10,130 417
Income Tax Expense (2) (2)
Net Loss (2,488) (14,671)
Other Comprehensive Income:    
Unrealized loss on available-for-sale debt securities 0 (2)
Comprehensive Loss $ (2,488) $ (14,673)
Net loss per common share basic $ (1.7) $ (19.25)
Net loss per common share diluted $ (1.7) $ (19.25)
Weighted average shares used in computing net loss per common share basic 1,463,609 762,076
Weighted average shares used in computing net loss per common share diluted 1,463,609 762,076
Royalty Revenue [Member]    
Revenues    
Total Revenues $ 119 $ 109
Product Revenue [Member]    
Revenues    
Total Revenues $ 25