Quarterly report pursuant to Section 13 or 15(d)

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

v3.23.1
Fair Value Measurements (Weighted average Significant Unobservable Inputs) (Details)
Mar. 31, 2023
Dec. 31, 2022
Oct. 11, 2022
Exercise price      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 5.41 5.41  
Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 0.934 0.894  
Expected life of the options to convert      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 4.7 5.0  
Risk-free rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 0.036 0.040  
Checkpoint | Series A Warrants | Exercise price      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 4.08 4.08  
Checkpoint | Series A Warrants | Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 0.934 0.894  
Checkpoint | Series A Warrants | Expected life of the options to convert      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 4.7 5.0  
Checkpoint | Series A Warrants | Risk-free rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 0.036 0.040  
Checkpoint | Series B Warrants | Exercise price      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 4.08 4.08  
Checkpoint | Series B Warrants | Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 1.000 0.824  
Checkpoint | Series B Warrants | Expected life of the options to convert      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 1.2 1.5  
Checkpoint | Series B Warrants | Risk-free rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 0.046 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  
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 1.37 0.93  
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 4.53 4.78  
Avenue Therapeutics, Inc [Member] | Contingent Payment Warrants | Risk-free rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 0.0360 0.0402  
Avenue Therapeutics, Inc [Member] | Contingently Issuable Warrants [Member] | Exercise price      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 1.17 1.16  
Avenue Therapeutics, Inc [Member] | Contingently Issuable Warrants [Member] | Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 1.64 1.60  
Avenue Therapeutics, Inc [Member] | Contingently Issuable Warrants [Member] | Expected life of the options to convert      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 2.84 3.00  
Avenue Therapeutics, Inc [Member] | Contingently Issuable Warrants [Member] | Risk-free rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 0.0381 0.0390  
Urica | Placement Agent Warrants | Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 0.834 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 1.2 1.5  
Urica | Placement Agent Warrants | Risk-free rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Warrant liability, measurement input 0.0450 0.0394