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Net Loss Per Common Share (Tables) | 3 Months Ended
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Mar. 31, 2021
Net Loss Per Common Share |
Schedule of potentially dilutive securities excluded from diluted net loss per common share | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31, | ​
​ |  | 2021 |  | 2020 |
Options to purchase common stock |  | 2,121,896 |  | 2,437,124 |
Restricted stock units | ​ | 485,012 | ​ | 326,903 | ​
Common stock warrants |  | 49,336 |  | 27,836 |
Total |  | 2,656,244 |  | 2,791,863 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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