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Equity (Tables) | 12 Months Ended
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Dec. 31, 2021
Equity [Abstract] |
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity | The following table summarizes activity related to RSUs during the year ended December 31, 2021 (in thousands, except for weighted average grant date fair value):
| Shares |  | Weighted Average Grant Date Fair Value
Outstanding, beginning of year | 425 |  |  | $ | 5.94 |
Granted | 118 |  |  | 8.16 |
Released | (176) |  |  | 6.08 |
Forfeited | (150) |  |  | 5.75 |
Outstanding, end of year | 217 |  |  | $ | 7.17 |
Share-based Payment Arrangement, Option, Activity | The following table summarizes activity related to options during the year ended December 31, 2021:
| Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term |  | Aggregate Intrinsic Value
Outstanding, beginning of year | 1,245 |  |  | $ | 7.89 |  |  |  |  |
Granted | 1,187 |  |  | 7.90 |  |  |  |  |
Exercised | (61) |  |  | 6.41 |  |  |  |  |
Cancelled | (478) |  |  | 7.19 |  |  |  |  |
Outstanding, end of year | 1,893 |  |  | $ | 8.03 |  |  | 3.49 |  | $ | 900 |
Vested and expected to vest | 1,652 |  |  | $ | 8.06 |  |  | 3.36 |  | $ | 842 |
Exercisable | 608 |  |  | $ | 8.70 |  |  | 2.06 |  | $ | 469 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions | The following table summarizes the weighted average assumptions used to develop their fair value for the years ending December 31:
| 2021 |  | 2020
Grant date fair value | $ | 3.63 |  |  | $ | 2.44 |
Risk-free interest rate | 0.64 | % |  | 0.20 | %
Expected volatility | 61 | % |  | 55 | %
Expected life | 3.99 years |  | 2.85 years
Dividend yield | — |  |  | — |

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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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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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