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Organization and description of business operations - Additional Information (Details)
Nov. 08, 2022
shares
Nov. 07, 2022
$ / shares
shares
Oct. 27, 2022
May 18, 2020
USD ($)
$ / shares
shares
Dec. 31, 2022
$ / shares
shares
Mar. 01, 2022
$ / shares
Dec. 31, 2021
$ / shares
shares
Nov. 09, 2021
shares
Nov. 02, 2021
shares
Merger Agreement                  
Common stock, par value (in dollars per share) | $ / shares   $ 0.001     $ 0.001 $ 0.001 $ 0.001    
Conversion reverse stock split ratio 0.02 0.02 0.02 0.0833          
Common stock, shares outstanding 2,971,439 148,571,994   27,347 2,670,856   1,272,383 539,063 468,750
Common stock, shares issued 2,971,439 148,571,994     2,969,272   1,272,383    
Common Stock, Shares Authorized         450,000,000   450,000,000    
VARs                  
Merger Agreement                  
Outstanding at the ending (in shares)         4,546   7,190    
Merger Agreement                  
Merger Agreement                  
Conversion reverse stock split ratio       0.0833          
Weighted Average Exercise Prices | $ / shares       $ 8,208.50          
Merger Agreement | BioPharmX                  
Merger Agreement                  
Merger conversion ratio       4,401          
Weighted Average Exercise Prices | $ / shares       $ 2,290.50          
Number of rights outstanding       1,957          
Merger Agreement | Timber Sub                  
Merger Agreement                  
Common stock issued for VARs       7,353          
Preferred units before merger       1,819,289          
Merger Agreement | Timber Sub | VARs                  
Merger Agreement                  
Outstanding at the ending (in shares)       11.68          
Merger Agreement | Timber Sub | Series A preferred stock                  
Merger Agreement                  
Common stock on conversion of units       1,819          
Merger Agreement | Timber Sub | Bridge Loan                  
Merger Agreement                  
Issuance | $       $ 2,250,000          
Original issue Discount | $       $ 250,000