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STOCK-BASED COMPENSATION (Tables) | 6 Months Ended
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Jun. 30, 2021
Share-based Payment Arrangement [Abstract] |
Summary of stock options and stock awards | Stock option activity is summarized as follows:
| Number of options |  | Weighted average exercise price
Outstanding at December 31, 2020 | 4,938,943 |  |  | $ | 5.46 |
Granted | 775,980 |  |  | 9.32 |
Exercised | (55,582) |  |  | 4.56 |
Canceled and forfeited | (98,635) |  |  | 8.05 |
Outstanding at June 30, 2021 | 5,560,706 |  |  | $ | 5.96 |
Schedule of option fair value assumptions | The Company calculated the grant date fair value of options granted in 2021 ("2021 Grants") utilizing a Black Scholes model with an expected life calculated via the simplified method.
| 2021 Grants |  |  |  |
Strike price | $9.29 | - | $9.55 |  |  |  |  |  |  |  |
Risk-free rate | 0.6% | - | 0.8% |  |  |  |  |  |
Expected dividend yield | — |  |  |  |
Expected volatility | 70.7% | - | 70.8% |  |  |  |  |  |  |  |
Expected term (in years) | 4.5 | - | 6 |  |  |  |  |  |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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