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SHARE BASED PAYMENTS (Tables) | 12 Months Ended
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Dec. 31, 2021
Share-based Payment Arrangement [Abstract] |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions | The following table presents share-based payment expense for the years ended December 31, 2021, 2020, and 2019.
| December 31,
| 2021 |  | 2020 |  | 2019
Restricted stock | $ | 4,349 |  |  | $ | 5,164 |  |  | $ | 1,420 |
Stock options | 781 |  |  | 2,251 |  |  | 1,071 |
Warrants | 1,455 |  |  | 441 |  |  | — |
Total | $ | 6,585 |  |  | $ | 7,856 |  |  | $ | 2,491 |
Schedule of Nonvested Restricted Stock Units Activity | Restricted stock activity for the years ended December 31, 2021 and 2020 is presented in the following table:
| Shares |  | Weighted Average Grant Date Fair Value
Nonvested, January 1, 2020 | 204 |  |  | $ | 3.82 |
Granted | 1,293 |  |  | 4.90 |
Vested | (800) |  |  | 5.16 |
Forfeited | (67) |  |  | 4.15 |
Nonvested, December 31, 2020 | 630 |  |  | $ | 4.51 |
Granted | 265 |  |  | 36.98 |
Vested | (360) |  |  | 8.47 |
Forfeited | (51) |  |  | 18.54 |
Nonvested, December 31, 2021 | 484 |  |  | $ | 20.19 |
Share-based Compensation Arrangements by Share-based Payment Award, Restricted Stock Units, Vested and Expected to Vest | Awards issued under the 2014 and 2018 Plan as of December 31, 2021 are summarized below:
| 2021
Total shares available for issuance pursuant to the 2014 Plan | 2,500 |
Options outstanding, December 31 2021 | (20) |
Total options exercised under 2014 Plan | (2,089) |
Total shares issued pursuant to the 2014 Plan | (375) |
Awards available for issuance under the 2014 Plan, December 31, 2021 | 16
| 2021
Total shares available for issuance pursuant to the 2018 Plan, as amended | 5,000 |
Options outstanding, December 31 2021 | (886) |
Total options exercised under 2018 Plan | (964) |
Total shares issued pursuant to the 2018 Plan | (1,452) |
Awards available for issuance under the 2018 Plan, December 31, 2021 | 1,698 |
Schedule of options outstanding pursuant |
| 2021 |  | 2020 |  | 2019
Expected volatility | N/A |  | 77.75-80.7% |  | 87.8-92.70%
Expected dividends | N/A |  | None |  | None
Expected term | N/A |  | 2-5 years |  | 2-5 years
Risk-free rate | N/A |  | 1.64-1.75% |  | 1.64 | %
Options outstanding pursuant to 2014 Plan |  |  |  |  | 20 |
Options outstanding pursuant to 2018 Plan |  |  |  |  | 886 |
Options issued outside of 2014 and 2018 Plans |  |  |  |  | — |
Total options outstanding December 31, 2021 |  |  |  |  | 906 |
Share-based Payment Arrangement, Option, Activity | The table below summarizes all the options granted by the Company during years ended December 31, 2021 and 2020:
Options |  | Shares |  | Weighted- Average Exercise Price |  | Weighted- Average Remaining Contractual Term |  | Weighted- Average Grant Date Fair Value
Outstanding at January 1, 2020 |  | 1,925 |  |  | $ | 2.71 |  |  | 3.60 years |  | $ | 1.71 |
Granted |  | 892 |  |  | $ | 4.75 |  |  |  |  | $ | 2.67 |
Exercised |  | (984) |  |  | $ | 2.59 |  |  |  |  | $ | 1.35 |
Forfeited or expired |  | (30) |  |  | $ | 2.75 |  |  |  |  | $ | 1.63 |
Outstanding at December 31, 2020 |  | 1,803 |  |  | $ | 3.92 |  |  | 3.47 years |  | $ | 2.38 |
Vested and exercisable at December 31, 2020 |  | 1,058 |  |  | $ | 3.55 |  |  | 3.13 years |  | $ | 2.00 |
Outstanding at January 1, 2021 |  | 1,803 |  |  | $ | 3.92 |  |  | 3.47 years |  | $ | 2.38 |
Granted |  | 0 |  |  | $ | 0.00 |  |  |  |  | $ | 0.00 |
Exercised |  | (822) |  |  | $ | 3.20 |  |  |  |  | $ | 1.71 |
Forfeited or expired |  | (75) |  |  | $ | 7.60 |  |  |  |  | $ | 4.53 |
Outstanding at December 31, 2021 |  | 906 |  |  | $ | 4.38 |  |  | 2.85 years |  | $ | 2.45 |
Vested and exercisable at December 31, 2021 |  | 836 |  |  | $ | 4.36 |  |  | 2.81 years |  | $ | 2.45 |

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- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding restricted stock units that are fully vested and expected to vest. Includes, but is not limited to, unvested restricted stock units for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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