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Common stock and non-redeemable convertible preferred stock - Narrative (Details) - USD ($)
 5 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Jun. 16, 2022
Dec. 31, 2020
Common stock and nonredeemable convertible preferred stock [Line Items]        
Dividends Declared   $ 0   $ 0
Common Stock, Par or Stated Value Per Share $ 0.0001 $ 0 $ 0.0001 $ 0
Common Stock, Shares, Issued   3,166,948   3,166,948
Preferred Stock, Voting Rights   2/3    
Common Stock Convertible Conversion Price   1.75%    
Proceeds from issuance of common stock $ 1      
ClassB2 Common share [Member]        
Common stock and nonredeemable convertible preferred stock [Line Items]        
Common Stock, Shares, Outstanding   3,061,745   3,061,745
Common Stock, Conversion Basis   one-for-one basis    
Qualified IPO [Member] | New York Stock Exchange [Member]        
Common stock and nonredeemable convertible preferred stock [Line Items]        
Proceeds from issuance of common stock   $ 40,000,000    
Qualified IPO [Member] | New York Stock Exchange [Member] | ClassB2 Common share [Member]        
Common stock and nonredeemable convertible preferred stock [Line Items]        
Proceeds from issuance of common stock   $ 250,000,000