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Share-based Compensation - Additional information (Details $ / shares in Units, ¥ in Millions, $ in Millions |  |  |  | 1 Months Ended | 13 Months Ended
--- | --- | --- | --- | --- | ---
Jun. 17, 2019 USD ($) $ / shares | Nov. 20, 2018 shares | Jun. 13, 2018 CNY (¥) | Sep. 29, 2018 USD ($) shares | Sep. 29, 2018 CNY (¥) shares | Aug. 31, 2020 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares issued |  |  |  |  |  | 80,000
Repurchase of restricted shares from employees, Shares price (in Shares) | $ / shares | $ 0.75 |  |  |  |  |
Repurchase of restricted shares from employees, Consideration | $ | $ 4.8 |  |  |  |  |
Class B ordinary shares | Mr. Wei Wen |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of common stock voting right |  |  | 15 |  |  |
Total share based compensation expense | ¥ |  |  | ¥ 4.7 |  |  |
Class A ordinary shares |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares issued |  | 10,400,000 |  |  |  |
ADS |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares issued |  |  |  |  |  | 20,000
Repurchase of restricted shares from employees, Shares price (in Shares) | $ / shares | $ 3.00 |  |  |  |  |
ACEE Capital Ltd. | Class A ordinary shares |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Total share based compensation expense | ¥ |  |  |  |  | ¥ 1.7 |
Number of shares issued |  |  |  | 521,962 | 521,962 |
Value of shares issued | $ |  |  |  | $ 1.1 |  |

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