Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Weighted average Significant Unobservable Inputs) (Details)

v3.23.3
Fair Value Measurements (Weighted average Significant Unobservable Inputs) (Details)
Sep. 30, 2023
Y
Jan. 31, 2023
Y
Dec. 31, 2022
Y
Oct. 22, 2022
$ / shares
Checkpoint | Exercise price | Minimum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 4.08   4.08  
Checkpoint | Exercise price | Maximum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 5.41   5.41  
Checkpoint | Volatility | Minimum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.914   0.824  
Checkpoint | Volatility | Maximum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 1.028   0.894  
Checkpoint | Expected life of the options to convert | Minimum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.7   1.5  
Checkpoint | Expected life of the options to convert | Maximum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 4.2   5.0  
Checkpoint | Risk-free rate | Minimum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.046   0.040  
Checkpoint | Risk-free rate | Maximum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.055   0.047  
Avenue Therapeutics, Inc [Member] | Warrants to Purchase Common Stock [Member] | Exercise price        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input | $ / shares       1.55
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Exercise price        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.71 1.38 1.16  
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Volatility        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input   1.60 0.93  
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Volatility | Minimum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 1.41      
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Volatility | Maximum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 1.65      
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Expected life of the options to convert        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input   3.00 4.78  
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Expected life of the options to convert | Minimum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 2.4      
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Expected life of the options to convert | Maximum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 4.0      
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Risk-free rate        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input   0.0390 0.0402  
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Risk-free rate | Minimum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.0460      
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Risk-free rate | Maximum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.0503      
Urica | Placement Agent Warrants | Volatility        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.857   0.707  
Urica | Placement Agent Warrants | Expected life of the options to convert        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.8   1.5  
Urica | Placement Agent Warrants | Risk-free rate        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.0550   0.0394