Stockholders' Equity (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Equity [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Outstanding Warrants to Purchase Shares of Common Stock |
As of December 31, 2018, the Company had warrants outstanding to purchase 3,521,735 shares of the Company’s common stock. The Company accounts for certain of its common stock warrants under guidance in ASC 480 that clarifies the determination of whether an instrument is classified as a liability or equity. The following table summarizes the Company’s outstanding warrants as of December 31, 2018 and 2017 and the warrant activity during the year ended December 31, 2018:
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Reconciliation of Warrant Liability Measured at Fair Value |
The following table is a reconciliation of the warrant liability measured at fair value using level 3 inputs (in thousands):
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Outstanding Warrants Valuation Assumption |
The fair value of these warrants on December 31, 2018 and 2017 was determined using a Black-Scholes model with the following key level 3 inputs:
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