Condensed Consolidated Statements of Changes in Shareholders' Equity Unaudited ¥ in Thousands, $ in Thousands |
Common Stock [Member]
Common Class A [Member]
CNY (¥)
shares
|
Common Stock [Member]
Common Class B [Member]
CNY (¥)
shares
|
Additional Paid-in Capital [Member]
CNY (¥)
|
Treasury Stock, Common [Member]
CNY (¥)
shares
|
Retained Earnings [Member]
CNY (¥)
|
AOCI Attributable to Parent [Member]
CNY (¥)
|
Parent [Member]
CNY (¥)
|
Noncontrolling Interest [Member]
CNY (¥)
|
Common Class A [Member]
shares
|
Common Class B [Member]
shares
|
USD ($)
shares
|
CNY (¥)
shares
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balance at Dec. 31, 2024 | ¥ 6 | ¥ 6 | ¥ 1,374,451 | ¥ (85,426) | ¥ 153,125 | ¥ 2,279 | ¥ 1,444,441 | ¥ 5,316 | ¥ 1,449,757 | |||
| Balance, shares at Dec. 31, 2024 | shares | 101,059,544 | 102,764,550 | ||||||||||
| Treasury stock, common, shares at Dec. 31, 2024 | shares | 12,626,052 | |||||||||||
| Net loss attributable to the Company and non-controlling interest shareholders | 120,395 | 120,395 | 133 | 120,528 | ||||||||
| Purchase of equity interests from non-controlling interests | (821) | (6,908) | (7,729) | (7,729) | ||||||||
| Share-based compensation related to 2015 and 2018 Share Incentive Plan | 7,160 | 7,160 | 7,160 | |||||||||
| Issuance of ordinary shares for exercised share options | 164 | 164 | ¥ 164 | |||||||||
| Issuance of ordinary shares for exercised share options, shares | shares | 45,426 | 45,426 | 45,426 | |||||||||
| Foreign currency translation adjustment | (3,875) | (3,875) | ¥ (3,875) | |||||||||
| Balance at Jun. 30, 2025 | ¥ 6 | ¥ 6 | 1,380,954 | ¥ (85,426) | 266,612 | (1,596) | 1,560,556 | 5,449 | 1,566,005 | |||
| Balance, shares at Jun. 30, 2025 | shares | 101,104,970 | 102,764,550 | ||||||||||
| Treasury stock, common, shares at Jun. 30, 2025 | shares | 12,626,052 | |||||||||||
| Balance at Dec. 31, 2025 | ¥ 6 | ¥ 6 | 1,414,499 | ¥ (103,085) | 226,317 | (11,080) | 1,526,663 | 5,601 | 1,532,264 | |||
| Balance, shares at Dec. 31, 2025 | shares | 99,200,641 | 102,764,548 | ||||||||||
| Treasury stock, common, shares at Dec. 31, 2025 | shares | 15,703,314 | |||||||||||
| Net loss attributable to the Company and non-controlling interest shareholders | (26,286) | (26,286) | (481) | $ (3,945) | (26,767) | |||||||
| Share-based compensation related to 2015 and 2018 Share Incentive Plan | 6,568 | 6,568 | 6,568 | |||||||||
| Issuance of ordinary shares for exercised share options | 63 | 63 | ¥ 63 | |||||||||
| Issuance of ordinary shares for exercised share options, shares | shares | 82,998 | 82,998 | 82,998 | |||||||||
| Foreign currency translation adjustment | (14,124) | (14,124) | $ (2,082) | ¥ (14,124) | ||||||||
| Repurchase of ordinary shares | ¥ (9,442) | (9,442) | (9,442) | |||||||||
| Repurchase of shares | shares | (4,202,514) | (4,202,514) | ||||||||||
| Repurchase of shares | shares | 4,202,514 | 4,202,514 | ||||||||||
| Appropriation to statutory reserves | 3 | (3) | ||||||||||
| Dividends declared | (30,264) | (30,264) | (30,264) | |||||||||
| Class B Ordinary Shares converted to Class A Ordinary Shares | ||||||||||||
| Class B Ordinary shares converted to Class A Ordinary shares, shares | shares | 90,000 | (90,000) | ||||||||||
| Balance at Jun. 30, 2026 | ¥ 6 | ¥ 6 | ¥ 1,421,133 | ¥ (112,527) | ¥ 169,764 | ¥ (25,204) | ¥ 1,453,178 | ¥ 5,120 | $ 214,927 | ¥ 1,458,298 | ||
| Balance, shares at Jun. 30, 2026 | shares | 95,171,125 | 102,674,548 | 95,171,125 | 102,674,548 | ||||||||
| Treasury stock, common, shares at Jun. 30, 2026 | shares | 19,905,828 |
| X | ||||||||||
- Definition Purchase of equity interests from non controlling interests. No definition available.
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| X | ||||||||||
- Definition StockIssuedDuringThePeriodAppropriationToStatutoryReserves No definition available.
|
| X | ||||||||||
- Definition Amount of increase to additional paid-in capital (APIC) for recognition of cost for option under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of shares issued which are neither cancelled nor held in the treasury. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Number of shares issued during the period as a result of the conversion of convertible securities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The gross value of stock issued during the period upon the conversion of convertible securities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Value of stock issued as a result of the exercise of stock options. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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