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Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2022
Shareholders' Equity [Abstract] |
Schedule of fair value assumptions |
|  | 2021 Grant |
Valuation assumptions: |  |  |
Dividend yield |  |  | 0 |
Expected volatility |  |  | 48 | %
Risk-free interest rate |  |  | 1.19 | %
Expected life (years) |  |  | 4.0 |
Vesting period (years) |  |  | 1.0 |
Schedule of stock option activity |
|  | Year Ended December 31, |
|  | 2022 |  |  | 2021 |  |  | 2020 |
|  |  |  |  | Weighted |  |  |  |  |  | Weighted |  |  |  |  |  | Weighted |
|  | Number |  |  | average |  |  | Number |  |  | average |  |  | Number |  |  | average |
|  | of |  |  | exercise |  |  | of |  |  | exercise |  |  | of |  |  | exercise |
|  | options |  |  | price US$ |  |  | options |  |  | price US$ |  |  | options |  |  | price US$ |
Outstanding at January 1 |  |  | 22,102 |  |  |  | 12.66 |  |  |  | 89,925 |  |  |  | 3.80 |  |  |  | 309,792 |  |  |  | 3.29 |
Granted |  |  | - |  |  |  | - |  |  |  | 5,704 |  |  |  | 36.45 |  |  |  | - |  |  |  | - |
Forfeited and cancelled |  |  | - |  |  |  | - |  |  |  | (106 | ) |  |  | 4.38 |  |  |  | (12,876 | ) |  |  | 3.74 |
Exercised |  |  | (784 | ) |  |  | 4.38 |  |  |  | (73,421 | ) |  |  | 3.67 |  |  |  | (206,991 | ) |  |  | 3.04 |
Outstanding at year end |  |  | 21,318 |  |  |  | 12.96 |  |  |  | 22,102 |  |  |  | 12.66 |  |  |  | 89,925 |  |  |  | 3.80 |
Exercisable at year end |  |  | 21,318 |  |  |  | 12.96 |  |  |  | 16,398 |  |  |  | 4.38 |  |  |  | 63,253 |  |  |  | 3.55 |
Schedule of options outstanding |
|  |  |  |  |  |  |  | Weighted |  |  | Aggregate |
|  | Number |  |  | Weighted |  |  | Average |  |  | intrinsic |
|  | of |  |  | average |  |  | Remaining |  |  | Value (in |
|  | options |  |  | exercise |  |  | Contractual |  |  | US$ |
|  | outstanding |  |  | price US$ |  |  | term (years) |  |  | thousands) |
Outstanding and exercisable as of December 31, 2022 |  |  | 21,318 |  |  |  | 12.96 |  |  |  | 2.78 |  |  |  | 375 |
Schedule of information about non-vested options |
|  |  |  |  | Weighted |
|  |  |  |  | average |
|  |  |  |  | grant- date |
|  | Options |  |  | fair value |
Balance at January 1, 2022 |  |  | 5,704 |  |  |  | 17.52 |
Granted |  |  | - |  |  |  | - |
Vested |  |  | (5,704 | ) |  |  | 17.52 |
Forfeited |  |  | - |  |  |  | - |
Balance at December 31, 2022 |  |  | - |  |  |  | - |
Schedule of restricted share unit activity |
|  | RSUs |  |  | Weighted average grant date value |
Balance at January 1, 2022 |  |  | 1,059,181 |  |  | $ | 15.55 |
Granted |  |  | 632,861 |  |  | $ | 36.69 |
Vested |  |  | (565,515 | ) |  | $ | 12.89 |
Forfeited |  |  | (25,106 | ) |  | $ | 31.55 |
Balance at December 31, 2022 |  |  | 1,101,421 |  |  | $ | 28.58 |

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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + 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 (c)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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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 options that are fully vested and expected to vest. Includes, but is not limited to, unvested options 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 https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&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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