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v3.24.1

Property and equipment, net | 12 Months Ended
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Dec. 31, 2023
Property, Plant and Equipment [Abstract] |
Property and equipment, net | Property and equipment, net Property and equipment, net, consisted of the following:
| As of December 31,
| 2022 |  | 2023
| RMB |  | RMB
Machinery and electronic equipment | 180,264 |  |  | 197,777 |
Transportation vehicles | 3,897 |  |  | 5,654 |
Office and other equipment | 15,510 |  |  | 20,614 |
Leasehold improvements | 43,440 |  |  | 44,747 |
Construction in progress | 332 |  |  | 7,938 |
Property and equipment | 243,443 |  |  | 276,730 |
Less: accumulated depreciation | (103,836) |  |  | (148,653) |
Less: impairment provision | — |  |  | (7,292) |
Property and equipment, net | 139,607 |  |  | 120,785 |
Depreciation on property and equipment was allocated as follows:
| Year ended December 31,
| 2021 |  | 2022 |  | 2023
| RMB |  | RMB |  | RMB
Cost of revenues | 1,401 |  |  | 1,022 |  |  | 544 |
Selling, general and administrative expenses | 26,834 |  |  | 31,931 |  |  | 29,914 |
Research and development expenses | 15,038 |  |  | 17,574 |  |  | 23,501 |
Total depreciation | 43,273 |  |  | 50,527 |  |  | 53,959 |
In the year ended December 31, 2023, an impairment loss of RMB7,292 was recognized for obsolete and damaged equipment, of which, RMB6,838 and RMB454 were included in research and development expenses and selling, general and administrative expenses, respectively. No impairment loss was recorded in the years ended December 31, 2021 and 2022.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-7 + Details
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