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Commitment and contingencies (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended
Nov. 30, 2021
Apr. 14, 2022
Dec. 31, 2021
Dec. 31, 2020
Nov. 30, 2020
Aug. 13, 2020
Apr. 30, 2020
Other Commitments [Line Items]              
Lease term 10 years 6 months            
Right-of-use asset and operating lease liability $ 6,800            
Preferred stock warrants              
Other Commitments [Line Items]              
Warrants, number of shares issuable (in shares)         3,247,637    
Warrants vested, percentage           40.00%  
Warrants, exercise price (in usd per share)         $ 1.92    
Warrants         $ 1,100    
Warrants vested, fair value     $ 0 $ 451      
Common stock warrants              
Other Commitments [Line Items]              
Warrants, number of shares issuable (in shares)             617,972
Warrants, exercise price (in usd per share)   $ 1.75         $ 1.75