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Nature of Business - Additional Information (Detail)
$ in Thousands
6 Months Ended
Jun. 30, 2023
USD ($)
Dec. 31, 2022
USD ($)
Accumulated deficit $ (109,269) $ (76,938)
ARS Pharma [Member]    
Ownership Percentage 62.00%  
Silverback [Member]    
Common stock equal to the exchange ratio 1.1819  
Ownership Percentage 38.00%  
Liquidity and Capital Resources [Member]    
Accumulated deficit $ 109,300  
Cash, cash Equivalents, and short-term investments $ 252,200