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Stock-based Compensation | 3 Months Ended
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Mar. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Stock-based Compensation |
12. | Stock-based Compensation
In February 2020, the Company amended the 2015 Plan to increase the total number of shares of common stock reserved for issuance under the plan by 250,000 shares. As of March 31, 2020, there are 53,799 and 210,030 shares common stock remaining and available for future issuances under the 2015 and 2014 Plans, respectively. A summary of activity for the three months ended March 31, 2020 is as follows:
|  | Options |  |  | Weighted Average Exercise Price |  | Aggregate Intrinsic Value |
Outstanding as of December 31, 2019 |  |  | 1,865 |  |  | $ | 2,968.22 |  |  |  |
Granted |  |  | 86,000 |  |  | $ | 2.18 |  |  |  |
Cancelled/forfeited |  |  | (124 | ) |  | $ | 49,903.00 |  |  |  |
Outstanding as of March 31, 2020 |  |  | 87,741 |  |  | $ | 51.44 |  | $ | — |
Vested as of March 31, 2020 |  |  | 1,080 |  |  | $ | 3,862.00 |  | $ | — |
Vested and expected to be vested as of March 31, 2020 |  |  | 87,741 |  |  | $ | 51.44 |  | $ | — |
As of March 31, 2020, the total compensation cost related to non-vested stock options not yet recognized for all our plans is approximately $227,000, which is expected to be recognized as a result of vesting under service conditions over a weighted average period of 2.77 years.

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