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Stockholders' Equity | 9 Months Ended
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Sep. 30, 2019
Stockholders' Equity [Abstract] |
Stockholders' Equity | 8. Stockholders’ Equity Warrants At September 30, 2019, outstanding warrants to purchase shares of common stock are as follows:
Shares Underlying |  |  |  |  |
Outstanding |  | Exercise |  | Expiration
Warrants |  | Price |  | Date
2,980 |  | $ | 1,505.00 |  | March 16, 2020
2,246 |  | $ | 567.00 |  | March 31, 2021
597,881 |  | $ | 21.00 |  | May 10, 2022
1,249,955 |  | $ | 5.60 |  | October 16, 2023
1,200 |  | $ | 1,680.00 |  | None
1,854,262 |  |  |  |  |

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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- References No definition available. + Details
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