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Derivative Financial Instruments - Warrants (Details) $ / shares in Units, $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 USD ($) $ / shares shares | Mar. 31, 2020 USD ($) | Dec. 31, 2020 $ / shares
Changes in the Company's derivative financial instruments liability balance |  |  |
Balance of warrants outstanding at the beginning of the period (in shares) | shares | 5,260,992 |  |
Balance of warrants outstanding at the end of the period (in shares) | shares | 4,490,159 |  |
Balance of derivative financial instruments liability at the beginning of the period | $ 285 |  |
Change in fair value of derivative financial instruments—warrants during the period recognized as a gain in the condensed statements of operations | 207 | $ 2 |
Balance of derivative financial instruments liability at the end of the period | $ 78 |  |
Warrants to purchase Common Stock |  |  |
Range of assumptions used to determine the fair value of warrants |  |  |
Estimated fair value of Trovagene common stock (in dollars per share) | $ / shares | $ 9.26 |  | $ 17.99
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 |  |
Balance of warrants outstanding at the end of the period (in shares) | shares | 64,496 |  |
Balance of derivative financial instruments liability at the beginning of the period | $ 285 |  |
Change in fair value of derivative financial instruments—warrants during the period recognized as a gain in the condensed statements of operations | (207) |  |
Balance of derivative financial instruments liability at the end of the period | $ 78 |  |
Expected warrant term | Warrants to purchase Common Stock |  |  |
Range of assumptions used to determine the fair value of warrants |  |  |
Expected warrant term | 1 year 9 months 18 days |  | 2 years 2 months 12 days
Risk-free interest rate | Warrants to purchase Common Stock |  |  |
Range of assumptions used to determine the fair value of warrants |  |  |
Measurement input | 0.0014 |  | 0.0013
Expected volatility of Cardiff Oncology common stock | Warrants to purchase Common Stock |  |  |
Range of assumptions used to determine the fair value of warrants |  |  |
Measurement input | 1.21 |  | 1.16
Dividend yield | Warrants to purchase Common Stock |  |  |
Range of assumptions used to determine the fair value of warrants |  |  |
Measurement input | 0 |  | 0

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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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