v3.26.1
Liquidity and going concern (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 23, 2026
Sep. 29, 2025
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
May 25, 2026
May 24, 2026
Dec. 31, 2025
Debt Instrument [Line Items]                  
Operating income (loss)     $ (7,214) $ (1,010) $ (12,079) $ (2,788)      
Net cash used in operating activities from continuing operations     (4,563) (5,622) (7,901) (14,227)      
Cash and cash equivalents (including restricted cash)     23,946 $ 6,064 23,946 $ 6,064     $ 27,158
Debt     $ 972   $ 972        
Minimum cash requirement             $ 3,000 $ 15  
Maximum proceeds from issuance of prospectus equity   $ 100,000              
Shelf prospectus, effective period   25 months              
Pre-Funded Warrants                  
Debt Instrument [Line Items]                  
Class of warrant or right, number of securities called by warrants or rights (in shares) 3,254,369                
Common Warrants                  
Debt Instrument [Line Items]                  
Class of warrant or right, number of securities called by warrants or rights (in shares) 4,854,369                
Common Stock                  
Debt Instrument [Line Items]                  
Issuance of common shares (in shares) 1,600,000   1,600,000