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Related Party Transactions - Schedule of Balances with Related Parties (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Fuzhou Tianyu [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | $ 59 | $ 41
Total due to related parties |  |  | 18
Fujian Desheng [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  |  | 39
Zhangwu Changjiang [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | 1,077 | 26
Changjiang Modeling [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | 296 | 582
Kunshan Changjiang [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | 265 | 13
Fujian Bafang [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | 4 |
Total due to related parties | [1] | 1,436 | 1,662
Chongqing Changjiang [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | 32 |
Changzhou Changjiang [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | 88 |
Shiyan Changjiang [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | 78 |
Xiantao Modeling [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | 169 |
Chengdu Changjiang [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | 5 |
Fuzhou Tianyu Management [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | 1 |
Total due to related parties |  |  | 7
Fuzhou Puhui Technology Co., Ltd [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | 205 |
Related Party [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due from related parties |  | 2,279 | 701
Total due to related parties |  | 1,546 | 1,687
Yongteng Liu [Member] |  |  |
Schedule of Balances with Related Parties [Abstract] |  |  |
Total due to related parties |  | $ 110 |
[1] | On December 10, 2007, the Company entered into an interest-free loan agreement with Fujian Bafang for a principal amount of approximately $1.3 million (RMB 9.6 million). Such loan is due on demand.

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