v3.26.1
Condensed Consolidated Statements of Changes in Stockholders’ Equity (Deficit) - USD ($)
$ in Millions
Total
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Beginning balance (in shares) at Jan. 31, 2025   3,916,932    
Beginning balance at Jan. 31, 2025 $ (182.5)   $ 940.5 $ (1,123.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Stock issued under stock incentive plan (in shares)   137,826    
Share-based compensation expense 2.9   2.9  
Net loss (52.5)     (52.5)
Ending balance (in shares) at Jul. 31, 2025   4,054,758    
Ending balance at Jul. 31, 2025 (232.1)   943.4 (1,175.5)
Beginning balance (in shares) at Apr. 30, 2025   3,981,495    
Beginning balance at Apr. 30, 2025 (207.1)   942.0 (1,149.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Stock issued under stock incentive plan (in shares)   73,263    
Share-based compensation expense 1.4   1.4  
Net loss (26.4)     (26.4)
Ending balance (in shares) at Jul. 31, 2025   4,054,758    
Ending balance at Jul. 31, 2025 (232.1)   943.4 (1,175.5)
Beginning balance (in shares) at Jan. 31, 2026   33,390,904    
Beginning balance at Jan. 31, 2026 (36.1)   1,064.3 (1,100.4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Stock issued under stock incentive plan (in shares)   321,154    
Stock issued related to the ATM offering, net of issuance costs (in shares)   45,358    
Stock issued related to the ATM offering, net of issuance costs 0.2   0.2  
Share-based compensation expense 2.2   2.2  
Net loss (31.8)     (31.8)
Ending balance (in shares) at Jul. 31, 2026   33,757,416    
Ending balance at Jul. 31, 2026 (65.5)   1,066.7 (1,132.2)
Beginning balance (in shares) at Apr. 30, 2026   33,464,771    
Beginning balance at Apr. 30, 2026 (53.3)   1,066.0 (1,119.3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Stock issued under stock incentive plan (in shares)   292,645    
Share-based compensation expense 0.7   0.7  
Net loss (12.9)     (12.9)
Ending balance (in shares) at Jul. 31, 2026   33,757,416    
Ending balance at Jul. 31, 2026 $ (65.5)   $ 1,066.7 $ (1,132.2)