Quarterly report pursuant to Section 13 or 15(d)

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

v3.23.2
Fair Value Measurements (Weighted average Significant Unobservable Inputs) (Details)
Jun. 30, 2023
Jan. 31, 2023
Dec. 31, 2022
Oct. 11, 2022
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 0.907   0.824  
Checkpoint | Volatility | Maximum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 1.082   0.894  
Checkpoint | Expected life of the options to convert | Minimum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 1.0   1.5  
Checkpoint | Expected life of the options to convert | Maximum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 4.5   5.0  
Checkpoint | Risk-free rate | Minimum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.041   0.040  
Checkpoint | Risk-free rate | Maximum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.054   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       1.55
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Exercise price        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 1.17 1.16 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 1.37      
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Volatility | Maximum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 1.64      
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 2.8      
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 4.5      
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 0.036      
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Risk-free rate | Maximum        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.038      
Urica | Placement Agent Warrants | Volatility        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.865   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 1.0   1.5  
Urica | Placement Agent Warrants | Risk-free rate        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Warrant liability, measurement input 0.0540   0.0394