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Derivative Financial Instruments - Warrants (Details)
12 Months Ended
Dec. 31, 2019
USD ($)
$ / shares
shares
Dec. 31, 2018
USD ($)
$ / shares
shares
Changes in the Company's derivative financial instruments liability balance    
Balance of warrants outstanding at the beginning of the period (in shares) | shares 3,649,341 322,774
Expired (in shares) | shares   (48,915)
Balance of warrants outstanding at the end of the period (in shares) | shares 10,589,482 3,649,341
Balance of derivative financial instruments liability at the beginning of the period $ 32,315  
Change in fair value of derivative financial instruments—warrants during the year recognized as a gain in the statement of operations (28,188) $ (617,072)
Balance of derivative financial instruments liability at the end of the period $ 4,127 $ 32,315
Warrants to purchase Common Stock    
Changes in the Company's derivative financial instruments liability balance    
Weighted average remaining contractual life 3 years 20 days 4 years 20 days
Warrants to purchase Common Stock | Black Scholes Option Pricing Method    
Changes in the Company's derivative financial instruments liability balance    
Balance of warrants outstanding at the beginning of the period (in shares) | shares 64,496 77,942
Expired (in shares) | shares   (13,446)
Balance of warrants outstanding at the end of the period (in shares) | shares 64,496 64,496
Balance of derivative financial instruments liability at the beginning of the period $ 32,315 $ 649,387
Expiration of Derivative Financial Instruments   0
Change in fair value of derivative financial instruments—warrants during the year recognized as a gain in the statement of operations (28,188) (617,072)
Balance of derivative financial instruments liability at the end of the period $ 4,127 $ 32,315
Warrants to purchase Common Stock | Black Scholes Option Pricing Method | Minimum    
Range of assumptions used to determine the fair value of warrants    
Estimated fair value of Trovagene common stock (in dollars per share) | $ / shares $ 1.24 $ 3.15
Warrants to purchase Common Stock | Black Scholes Option Pricing Method | Maximum    
Range of assumptions used to determine the fair value of warrants    
Estimated fair value of Trovagene common stock (in dollars per share) | $ / shares $ 3.75 $ 25.14
Expected term | Warrants to purchase Common Stock | Black Scholes Option Pricing Method | Minimum    
Range of assumptions used to determine the fair value of warrants    
Expected warrant term 3 years 1 month 6 days 0 years
Expected term | Warrants to purchase Common Stock | Black Scholes Option Pricing Method | Maximum    
Range of assumptions used to determine the fair value of warrants    
Expected warrant term 4 years 1 month 6 days 5 years 1 month 6 days
Risk-free interest rate | Warrants to purchase Common Stock | Black Scholes Option Pricing Method | Minimum    
Range of assumptions used to determine the fair value of warrants    
Measurement input 0.0156 0.0176
Risk-free interest rate | Warrants to purchase Common Stock | Black Scholes Option Pricing Method | Maximum    
Range of assumptions used to determine the fair value of warrants    
Measurement input 0.0249 0.0292
Expected volatility | Warrants to purchase Common Stock | Black Scholes Option Pricing Method | Minimum    
Range of assumptions used to determine the fair value of warrants    
Measurement input 1.02 0.47
Expected volatility | Warrants to purchase Common Stock | Black Scholes Option Pricing Method | Maximum    
Range of assumptions used to determine the fair value of warrants    
Measurement input 1.11 1.31
Dividend yield | Warrants to purchase Common Stock | Black Scholes Option Pricing Method    
Range of assumptions used to determine the fair value of warrants    
Measurement input 0 0