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Share-based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] |
Summary of Share.Based Compensation | Share-based compensation recognized for the years ended December 31, 2019, 2020 and 2021 is as follows:
|  | For the year ended December 31, |
|  | 2019 |  |  | 2020 |  |  | 2021 |  |  | 2021 |
|  | RMB |  |  | RMB |  |  | RMB |  |  | US$ |
Cost of revenues |  |  | — |  |  |  | 14,789 |  |  |  | 11,484 |  |  |  | 1,802 |
Selling and marketing expenses |  |  | — |  |  |  | 2,370 |  |  |  | 3,431 |  |  |  | 538 |
General and administrative expenses |  |  | — |  |  |  | 16,128 |  |  |  | 12,496 |  |  |  | 1,961 |
Research and development expenses |  |  | — |  |  |  | 17,454 |  |  |  | 9,948 |  |  |  | 1,561 |
Total |  |  | — |  |  |  | 50,741 |  |  |  | 37,359 |  |  |  | 5,862 |
Summary of Stock Option Awards Outstanding | The following table presents a summary of the Company’s stock options activities for the years ended December 31, 2019, 2020 and 2021.
|  | Employees |  |  | Consultants |  |  | Total |  |  | Weighted average exercise price |  |  | Remaining contractual life |  |  | Aggregated intrinsic value |
|  | (in thousands) |  |  | (in thousands) |  |  | (in thousands) |  |  | US$ |  |  |  |  |  | RMB |
Outstanding at January 1, 2019 |  |  | 12,665 |  |  |  | 500 |  |  |  | 13,165 |  |  |  | 0.0001 |  |  |  | 3.75 |  |  |  | 20,514 |
Forfeited |  |  | (844 | ) |  |  | — |  |  |  | (844 | ) |  |  | 0.0001 |  |  |  | — |  |  |  | — |
Outstanding at December 31, 2019 |  |  | 11,821 |  |  |  | 500 |  |  |  | 12,321 |  |  |  | 0.0001 |  |  |  | 2.75 |  |  |  | 43,011 |
Exercisable as of December 31, 2019 |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Outstanding at January 1, 2020 |  |  | 11,821 |  |  |  | 500 |  |  |  | 12,321 |  |  |  | 0.0001 |  |  |  | 2.75 |  |  |  | 43,011 |
Granted |  |  | 32,932 |  |  |  | 363 |  |  |  | 33,295 |  |  |  | 0.0001 |  |  |  | — |  |  |  | — |
Exercised |  |  | (3,235 | ) |  |  | — |  |  |  | (3,235 | ) |  |  | 0.0001 |  |  |  | — |  |  |  | — |
Forfeited |  |  | (3,714 | ) |  |  | — |  |  |  | (3,714 | ) |  |  | 0.0001 |  |  |  | — |  |  |  | — |
Outstanding at December 31, 2020 |  |  | 37,804 |  |  |  | 863 |  |  |  | 38,667 |  |  |  | 0.0001 |  |  |  | 3.09 |  |  |  | 48,921 |
Exercisable as of December 31, 2020 |  |  | 5,002 |  |  |  | 250 |  |  |  | 5,252 |  |  |  | 0.0001 |  |  |  | — |  |  |  | 6,644 |
Outstanding at January 1, 2021 |  |  | 37,804 |  |  |  | 863 |  |  |  | 38,667 |  |  |  | 0.0001 |  |  |  | 3.09 |  |  |  | 48,921 |
Granted |  |  | 32,389 |  |  |  | — |  |  |  | 32,389 |  |  |  | 0.0001 |  |  |  | — |  |  |  | — |
Exercised |  |  | (4,925 | ) |  |  | — |  |  |  | (4,925 | ) |  |  | 0.0001 |  |  |  | — |  |  |  | — |
Forfeited |  |  | (15,571 | ) |  |  | — |  |  |  | (15,571 | ) |  |  | 0.0001 |  |  |  | — |  |  |  | — |
Outstanding at December 31, 2021 |  |  | 49,697 |  |  |  | 863 |  |  |  | 50,560 |  |  |  | 0.0001 |  |  |  | 2.56 |  |  |  | 29,786 |
Exercisable as of December 31, 2021 |  |  | 8,216 |  |  |  | 341 |  |  |  | 8,557 |  |  |  | 0.0001 |  |  |  | — |  |  |  | 5,041 |
Summary of Restricted Shares Activities | The following table sets forth the summary of restricted shares activities:
|  | Number of Restricted Shares Granted |  |  | Weighted-Average Grant Date Fair Value |
|  | (in thousands) |  |  | US$ |
January 1, 2019 |  |  | 14,500 |  |  |  | 0.21 |
Awarded |  |  | 10,428 |  |  |  | 0.26 |
Vested |  |  | — |  |  |  | — |
Outstanding at December 31, 2019 |  |  | 24,928 |  |  |  | 0.23 |
January 1, 2020 |  |  | 24,928 |  |  |  | 0.23 |
Awarded |  |  | 2,607 |  |  |  | 0.27 |
Forfeited |  |  | (7,821 | ) |  |  | 0.26 |
Vested |  |  | (9,857 | ) |  |  | 0.22 |
Outstanding at December 31, 2020 |  |  | 9,857 |  |  |  | 0.23 |
January 1, 2021 |  |  | 9,857 |  |  |  | 0.23 |
Awarded |  |  | — |  |  |  | — |
Forfeited |  |  | — |  |  |  | — |
Vested |  |  | (6,232 | ) |  |  | 0.24 |
Outstanding at December 31, 2021 |  |  | 3,625 |  |  |  | 0.21 |
|  | Number of Restricted Share Units Granted |  |  | Weighted-Average Grant Date Fair Value |
|  | (in thousands) |  |  | (in thousands) |
|  |  |  |  | US$ |
January 1, 2020 |  |  | — |  |  |  | — |
Awarded |  |  | 9,611 |  |  |  | 0.22 |
Forfeited |  |  | (5,101 | ) |  |  | 0.24 |
Vested |  |  | — |  |  |  | — |
Outstanding at December 31, 2020 |  |  | 4,510 |  |  |  | 0.20 |
January 1, 2021 |  |  | 4,510 |  |  |  | 0.20 |
Awarded |  |  | 13,080 |  |  |  | 0.30 |
Forfeited |  |  | (2,308 | ) |  |  | 0.20 |
Vested |  |  | (3,018 | ) |  |  | 0.19 |
Outstanding at December 31, 2021 |  |  | 12,264 |  |  |  | 0.31 |

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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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