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Stockholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2020
Equity [Abstract] |
Schedule of Stock Option Activity | The following table summarizes the activity for stock options and warrants for the nine months ended September 30, 2020:
|  | Stock Options |  | Warrants
|  | Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value (In Thousands) |  | Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value (In Thousands)
Outstanding at December 31, 2019 |  | 1,044,417 |  |  | $ | 18.31 |  |  | 6.06 |  | $ | — |  |  | 30,000 |  |  | $ | 5.89 |  |  | 3.19 |  | $ | — |
Changes during the period: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Granted |  | 245,776 |  |  | 3.22 |  |  |  |  |  |  | 2,608,355 |  |  | 2.14 |  |  |  |  |
Exercised |  | — |  |  | — |  |  |  |  |  |  | — |  |  | — |  |  |  |  |
Forfeited |  | (44,150) |  |  | 3.79 |  |  |  |  |  |  | — |  |  | — |  |  |  |  |
Expired |  | (140,635) |  |  | 27.33 |  |  |  |  |  |  | — |  |  | — |  |  |  |  |
Outstanding at September 30, 2020 |  | 1,105,408 |  |  | $ | 14.39 |  |  | 6.24 |  | $ | — |  |  | 2,638,355 |  |  | $ | 2.18 |  |  | 4.98 |  | $ | — |
Vested at September 30, 2020 or expected to vest in the future |  | 1,083,355 |  |  | $ | 14.61 |  |  | 6.18 |  | $ | — |  |  | 2,638,355 |  |  | $ | 2.18 |  |  | 4.98 |  | $ | — |
Vested at September 30, 2020 |  | 816,133 |  |  | $ | 18.13 |  |  | 5.34 |  | $ | — |  |  | 2,638,355 |  |  | $ | 2.18 |  |  | 4.98 |  | $ | — |
Nonvested Restricted Stock Shares Activity [Table Text Block] | During the nine months ended September 30, 2020 and 2019, the Company issued restricted stock for services as follows ($ in thousands):
|  | Nine Months Ended September 30,
|  | 2020 |  | 2019
Number of restricted stock issued |  | 156,184 |  |  | 123,564 |
Value of restricted stock issued |  | $ | 512 |  |  | $ | 612 |
Schedule of Restricted Stock Units Activity | During the nine months ended September 30, 2020 and 2019, the Company issued restricted stock units for services as follows ($ in thousands, except share data):
| Nine Months Ended September 30,
| 2020 |  | 2019
Number of restricted stock units issued | 246,383 |  |  | 184,454 |
Value of restricted stock units issued | $ | 743 |  |  | $ | 909 |

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