Annual report pursuant to Section 13 and 15(d)

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

v3.23.1
Fair Value Measurements (Weighted average Significant Unobservable Inputs) (Details)
Dec. 31, 2022
$ / shares
Y
Dec. 16, 2022
$ / shares
Y
Checkpoint | Series A Warrants | Stock Price    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input | $ / shares 4.08 4.08
Checkpoint | Series A Warrants | Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.894 0.895
Checkpoint | Series A Warrants | Expected life of the options to convert    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 5.0 5.0
Checkpoint | Series A Warrants | Risk-free rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.040 0.036
Checkpoint | Series B Warrants | Stock Price    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input | $ / shares 4.08 4.08
Checkpoint | Series B Warrants | Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.824 0.791
Checkpoint | Series B Warrants | Expected life of the options to convert    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 1.5 1.5
Checkpoint | Series B Warrants | Risk-free rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.047 0.042
Checkpoint | Placement Agent Warrants | Stock Price    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input | $ / shares 5.41 5.51
Checkpoint | Placement Agent Warrants | Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.894 0.595
Checkpoint | Placement Agent Warrants | Expected life of the options to convert    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 5.0 5.0
Checkpoint | Placement Agent Warrants | Risk-free rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.040 0.036
Avenue Therapeutics, Inc [Member] | Warrants to Purchase Common Stock [Member] | Expected life of the options to convert | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 4.8  
Avenue Therapeutics, Inc [Member] | Warrants to Purchase Common Stock [Member] | Expected life of the options to convert | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 5.0  
Avenue Therapeutics, Inc [Member] | Warrants to Purchase Common Stock [Member] | Risk-free rate | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.0402  
Avenue Therapeutics, Inc [Member] | Warrants to Purchase Common Stock [Member] | Risk-free rate | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.0414  
Avenue Therapeutics, Inc [Member] | Warrants to Purchase Common Stock [Member] | Dividend yield | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.928  
Avenue Therapeutics, Inc [Member] | Warrants to Purchase Common Stock [Member] | Dividend yield | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.903  
Urica | Warrants to Purchase Common Stock [Member] | Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.707  
Urica | Warrants to Purchase Common Stock [Member] | Expected life of the options to convert    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 1.5  
Urica | Warrants to Purchase Common Stock [Member] | Risk-free rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.0394  
Journey | Warrants to Purchase Common Stock [Member] | Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.0050  
Journey | Warrants to Purchase Common Stock [Member] | Expected life of the options to convert    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 1.00  
Journey | Warrants to Purchase Common Stock [Member] | Risk-free rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Warrant liability, measurement input 0.0098