v3.26.1
Loss per share of common stock - Computation of basic and diluted loss per share of common stock (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Loss per share of common stock            
Net loss $ (5,316) $ (3,823) $ (3,995) $ (3,671) $ (9,139) $ (7,666)
Weighted average shares of common stock, basic (in shares) 5,931,875   1,389,753   5,398,683 1,162,692
Weighted average shares of common stock, diluted (in shares) 5,931,875   1,389,753   5,398,683 1,162,692
Loss per share of common stock, basic (in dollars per share) $ (0.9)   $ (2.87)   $ (1.69) $ (6.59)
Loss per share of common stock, diluted (in dollars per share) $ (0.9)   $ (2.87)   $ (1.69) $ (6.59)