v3.26.1
Summary of Significant Accounting Policies (FY) (Details)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Mar. 04, 2026
USD ($)
Jul. 14, 2025
shares
Jan. 31, 2026
USD ($)
Mar. 31, 2026
USD ($)
shares
Mar. 31, 2025
USD ($)
shares
Dec. 31, 2025
USD ($)
shares
Dec. 31, 2024
USD ($)
shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Marketable securities       $ 0   $ 0 $ 39,183
Loss on disposal of property and equipment $ 3,200           0
Impairment of property and equipment           3,500  
Impairment expenses for right of use assets       0 $ 0 2,633 2,516
Other income (expense), net       688 1,054 3,774 5,633
Amortization of premium and discount       300 700 2,300 4,300
Sublease Income       $ 356 $ 367 $ 1,467 987
Gain (loss) on sale of tax credits             $ 300
Amount of antidilutive securities excluded from computation of earnings per share | shares       872,700 768,047 709,669 587,310
Stock split   0.05          
Stock issued during period, Reverse stock splits | shares   0          
Laboratory equipment and certain other assets              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Impairment of property and equipment           $ 2,600  
Laboratory equipment and certain other assets | Subsequent Event [Member]              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Proceeds from Sale of Property, Plant, and Equipment     $ 1,200        
Stock options              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Amount of antidilutive securities excluded from computation of earnings per share | shares       846,107 704,699 658,973 577,581
Unvested restricted stock units              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Amount of antidilutive securities excluded from computation of earnings per share | shares       25,000 62,500 50,000 7,093
Employee stock purchase plan              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Amount of antidilutive securities excluded from computation of earnings per share | shares       1,593 848 696 2,636
Computer hardware              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Useful life       3 years   3 years  
Office equipment              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Useful life       5 years   5 years  
Laboratory equipment              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Useful life       5 years   5 years  
Impairment of property and equipment           $ 2,500  
Leasehold improvements              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Impairment of property and equipment           $ 900  
Furniture and fixtures              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Useful life       7 years   7 years  
Other Assets              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Impairment of property and equipment           $ 100  
Laboratory equipment and certain other assets              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Impairment of property and equipment         $ 2,600    
Property and equipment and certain other assets              
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]              
Impairment of property and equipment             $ 2,700