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Share Incentive Plan (Tables) | 12 Months Ended
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Dec. 31, 2022
Share-Based Payment Arrangement [Abstract] |
Summary of Option Activities and Changes | A summary of option activities during the year ended December 31, 2022 were presented below:
|  |  |  |  |  |  |  | Weighted- average |  |  |  |  |  | Weighted- |
|  |  |  |  | Weighted- |  |  | remaining |  |  | Aggregated |  |  | average |
|  | Number of |  |  | average |  |  | contractual |  |  | intrinsic |  |  | grant date |
Share options |  | shares |  |  | exercise price |  |  | term(years) |  |  | value |  |  | fair value |
|  |  |  |  | RMB |  |  |  |  |  | RMB |  |  | RMB |
Outstanding, December 31, 2021 |  |  | 31,931 |  |  |  | 560.95 |  |  |  | 5.81 |  |  |  | — |  |  |  | 271.90 |
Granted |  |  | 375,000 |  |  |  | 26.94 |  |  |  | 5.00 |  |  |  | 2,273 |  |  |  | 18.51 |
Exercised |  |  | (375,000 | ) |  |  | 26.94 |  |  |  | 5.00 |  |  |  | (2,273 | ) |  |  | 18.51 |
Forfeited |  |  | (381 | ) |  |  | 560.95 |  |  |  | — |  |  |  | — |  |  |  | 271.90 |
Outstanding, December 31, 2022 |  |  | 31,550 |  |  |  | 560.95 |  |  |  | 4.81 |  |  |  | — |  |  |  | 271.90 |
Schedule of Estimated Fair Value of Options Granted Using Black-Scholes Model | The Company calculated the estimated fair value of the options on the grant date using Black-Scholes option pricing model, with the following assumptions used:
|  | May 10, |
Grant Dates |  | 2022 |
Risk-free interest rate (1) |  | 2.9% |
Volatility (2) |  | 73.2% |
Expected dividend yield (3) |  | 0% |
Exercise price |  |  | 26.94 |
Expected life (years) (4) |  |  | 5.00 |
Fair value of underlying ordinary share |  |  | 33.00 |
(1) Risk-free interest rate was estimated based on the US Treasury constant maturity yield curve with a maturity that matches the expected term of the option. (2) The volatility was estimated based on historical volatility of the Company's share price applying the guidance provided by ASC 718 and the daily share price volatility of comparable companies for an observation period that matches the life of options. (3) Expected dividend yield was estimated by the Group based on its expected dividend policy over the expected term of the options. (4) Expected life was calculated based on the vesting period and contractual terms of the options.
Schedule of Share-based Compensation Expense Recognized | Total share-based compensation expense of share-based awards granted to employees, certain directors and management recognized for the years ended December 31, 2020, 2021 and 2022 were as follows:
|  | Years ended December 31, |
|  | 2020 |  |  | 2021 |  |  | 2022 |
|  | RMB |  |  | RMB |  |  | RMB |
Cost of revenues |  |  | 146 |  |  |  | 101 |  |  |  | 33 |
Sales and marketing expenses |  |  | 14,278 |  |  |  | (14 | ) |  |  | 4,166 |
General and administrative expenses |  |  | 15,324 |  |  |  | 681 |  |  |  | 2,982 |
|  |  | 29,748 |  |  |  | 768 |  |  |  | 7,181 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + 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 (h)(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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