v3.26.1
CONSOLIDATED STATEMENTS OF CASHFLOWS - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Cash flows from operating activities:        
Net loss $ (8,575) $ (12,870) $ (73,845) $ (54,344)
Adjustments to reconcile net loss to net cash used in operating activities:        
Depreciation and amortization 882 2,191 6,733 9,131
Non-cash lease expenses and amortization 310 302 1,194 1,248
Stock-based compensation 1,534 3,857 9,449 9,125
Financing costs related to issuance of convertible promissory notes - related parties 37   4,608  
Change in fair value of convertible promissory notes - related parties 1,407   4,389  
Change in fair value of warrant liability 106   2,230 (488)
Loss on disposal of property and equipment 9 7 123 100
Loss and impairment on lease termination     17,063  
Unrealized foreign exchange (gain) loss 487 51 (52) 880
Non-cash interest   39 101 209
Changes in operating assets and liabilities:        
Receivables under collaboration agreements (2,208) 545 (563) 306
Prepaid expenses and other current assets (306) 70 (625) 150
Other non-current assets 120   (160)  
Accounts payable (174) 5 270 (1,626)
Accrued expenses 271 (2) 134 (688)
Operating lease liabilities (320) (298) (1,211) (1,213)
Net cash used in operating activities (6,120) (6,103) (30,162) (37,210)
Cash flows from investing activities:        
Property and equipment expenditures (482) (172) (1,049) (1,023)
Advances on property and equipment (5)   (45) (960)
Proceeds from disposal of property and equipment from lease termination     2,400  
Proceeds from disposal of property and equipment     20 106
Net cash used in investing activities (487) (172) 1,326 (1,877)
Cash flows from financing activities:        
Proceeds from stock option exercises 90 2 19 13
Payment for termination of finance lease     (2,000)  
Principal paid on finance lease liability   (207) (611) (829)
Financing costs related to issuance of convertible promissory notes - related parties (37)   (108)  
Proceeds from convertible promissory notes 4,300   10,000  
Net cash provided by financing activities 3,302 (205) 7,300 (816)
Effects of exchange rate change on cash, cash equivalents and restricted cash (134) (36) (113) (215)
Net Change in Cash (3,439) (6,516) (21,649) (40,118)
Beginning cash, cash equivalents and restricted cash 29,772 51,421 51,421 91,539
Ending cash, cash equivalents and restricted cash $ 26,333 44,905 29,772 51,421
Cash paid during the year for:        
Interest   $ 146 873 563
Non-cash investing and financing activities:        
Purchases of property and equipment included in accrued expenses       $ 608
Financing costs related to issuance of convertible promissory notes - related parties     4,500  
Deferred transaction costs included in accrued expenses     1,423  
Finance lease ROU assets and lease liabilities derecognized upon lease termination     $ 6,101