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Shareholders' Equity, Private Placement and Warrants (Details)
$ / shares in Units, $ in Thousands
 6 Months Ended
Sep. 30, 2023
USD ($)
$ / shares
shares
Sep. 25, 2023
USD ($)
shares
Sep. 24, 2023
USD ($)
shares
Sep. 30, 2024
USD ($)
$ / shares
shares
Sep. 30, 2023
USD ($)
$ / shares
shares
Mar. 31, 2024
USD ($)
$ / shares
Mar. 31, 2023
USD ($)
Private Placement [Abstract]              
Warrants exercised into common shares (in shares) | shares     1,951,371 740,457      
Warrant exercise price (in dollars per share) | $ / shares       $ 1.03   $ 1.72  
Term of warrants       5 years      
Proceeds from offering | $     $ 7,500        
Derivative warrant liabilities | $ $ 3,457     $ 2,603 $ 3,457 $ 4,359 $ 0
Warrants [Abstract]              
Initial warrant liability | $       0 $ 1,631    
Shore Pharma LLC and SS Pharma LLC [Member]              
Private Placement [Abstract]              
Derivative warrant liabilities | $       $ 868   $ 1,453  
Private Placement [Member]              
Private Placement [Abstract]              
Warrants exercised into common shares (in shares) | shares 1,951,371            
Common shares sold price per share (in dollars per share) | $ / shares $ 1.848       $ 1.848    
Warrant exercise price (in dollars per share) | $ / shares 0.0001       0.0001    
Net proceeds from offering | $   $ 7,338          
Private Placement [Member] | Shore Pharma LLC and SS Pharma LLC [Member]              
Private Placement [Abstract]              
Beneficial owner percentage   5.50%          
Proceeds from offering | $   $ 2,500          
Pre-funded Warrants [Member]              
Private Placement [Abstract]              
Number of shares of common stock that can be purchased with warrants (in shares) | shares       1,366,373      
Warrant exercise price (in dollars per share) | $ / shares       $ 0.0001      
Number of shares of common stock that can be purchased with warrants (in shares) | shares       740,480      
Warrants [Abstract]              
Proceeds from issuance of warrants | $   3,047          
Payment of issuance cost warrants | $   84          
Pre-funded Warrants [Member] | Private Placement [Member]              
Private Placement [Abstract]              
Warrant exercise price (in dollars per share) | $ / shares $ 0.0001       $ 0.0001    
Number of shares issued upon exercise of each warrant (in shares) | shares 1       1    
Number of shares of common stock that can be purchased with warrants (in shares) | shares 2,106,853       2,106,853    
Common Warrants [Member]              
Private Placement [Abstract]              
Number of shares of common stock that can be purchased with warrants (in shares) | shares       2,536,391      
Warrant exercise price (in dollars per share) | $ / shares       $ 3.003      
Warrants [Abstract]              
Payment of issuance cost warrants | $   $ 45          
Common Warrants [Member] | Private Placement [Member]              
Private Placement [Abstract]              
Number of shares of common stock that can be purchased with warrants (in shares) | shares 2,536,391       2,536,391    
Common Warrant and Pre-Funded Warrant [Member]              
Private Placement [Abstract]              
Number of shares of common stock that can be purchased with warrants (in shares) | shares   4,643,244          
Term of warrants       5 years      
Common Warrant and Pre-Funded Warrant [Member] | Private Placement [Member]              
Private Placement [Abstract]              
Common shares and pre-funded warrant issued ratio 0.625            
Common Stock [Member]              
Warrants [Abstract]              
Payments of stock issuance costs | $   $ 78          
Proceeds from issuance of common shares | $   $ 2,822          
Common Stock [Member] | Private Placement [Member]              
Private Placement [Abstract]              
Warrants exercised into common shares (in shares) | shares       740,480      
Warrant exercise price (in dollars per share) | $ / shares $ 3.003       $ 3.003    
Common Stock [Member] | Common Warrants [Member] | Private Placement [Member]              
Private Placement [Abstract]              
Number of shares issued upon exercise of each warrant (in shares) | shares 1       1