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Revenue and Segment Reporting (Details) - Schedule of reconciliations of reportable segment revenues and profit or loss ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
Revenue |  |  |  |
Consolidated revenue (note 17(a)) | ¥ 897,035 | $ 137,477 | ¥ 1,447,899 | ¥ 1,424,234
Profit |  |  |  |
Reportable segment profit | 286,564 |  | 674,565 | 791,558
Other profit | 12,592 |  | 31,040 | 17,113
Reportable segment profit derived from Group’s external customers | 299,156 |  | 705,605 | 808,671
Selling and marketing expenses | (310,433) |  | (437,986) | (425,217)
General and administrative expenses | (238,592) |  | (329,828) | (253,939)
Research and development expenses | (31,878) |  | (32,333) | (26,178)
Interest income | 448 |  | 1,633 | 1,150
Interest expenses | (6,101) |  | (2,453) | (8)
Foreign currency exchange gain/(loss), net | (382) | (59) | (19) | 21
Gains/(losses) on disposal and closure of subsidiaries and branches | (31,884) |  | 583 |
Gains on available-for-sale investments |  |  |  | 3,916
Gains on Short-term investments | 495 | 76 |  |
Government grants | 28,124 |  | 5,773 | 7,817
Equity in income on equity method investments | (1,532) | (235) | 2,658 | 1,668
Depreciation and amortization | (16,469) |  | (23,414) | (31,570)
Share-based compensation expenses | (52,256) | $ (8,009) | (96,661) | (7,648)
Warrant financing | (41,118) |  |  |
Others, net | 4,640 |  | 4,044 | 1,649
Unallocated head office and corporate expenses | (9,198) |  | (13,062) | (12,433)
Consolidated (loss)/income before income tax | (406,980) |  | (215,460) | 67,899
Reportable segment revenue [Member] |  |  |  |
Revenue |  |  |  |
Consolidated revenue (note 17(a)) | 884,130 |  | 1,415,852 | 1,405,149
Other revenue [Member] |  |  |  |
Revenue |  |  |  |
Consolidated revenue (note 17(a)) | ¥ 12,905 |  | ¥ 32,047 | ¥ 19,085

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