v3.26.1
Stock-based compensation - Restricted Stock Units (Details) - Restricted Stock Units
 6 Months Ended
Jun. 30, 2026
$ / shares
shares
Stock-based compensation  
Balance at the beginning (in shares) | shares 830,077
Granted (in shares) | shares 360,540
Vested/released (in shares) | shares (63,508)
Balance at the end (in shares) | shares 1,127,109
Weighted average grant date fair value, beginning (in dollars per shares) | $ / shares $ 3.57
Weighted average grant date fair value, granted (in dollars per shares) | $ / shares 5.38
Weighted average grant date fair value, vested (in dollars per share) | $ / shares 4.71
Weighted average grant date fair value, ending (in dollars per shares) | $ / shares $ 4.08