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OTHER NON-CURRENT ASSETS, NET (Schedule of Other Non-current Assets) (Details) ¥ in Thousands, $ in Thousands | Dec. 31, 2018 CNY (¥) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 CNY (¥)
--- | --- | --- | ---
OTHER NON-CURRENT ASSETS |  |  |  |
Prepayment for purchase of minority interest | [1] | ¥ 0 |  | ¥ 4,504
Equity method investments |  | 2,446 |  | 1,764
Prepayment for development of internal use software |  | 1,211 |  | 1,211
Long-term prepaid rental fees |  | 4,312 |  | 2,161
Others |  | 3,295 |  | 3,952
Total |  | ¥ 11,264 | $ 1,638 | ¥ 13,592
[1] | In 2017, the Group prepaid RMB 4,504 to purchase 10% economic interest of Shenyang K-12. The transfer of ownership of such economic interest has been completed in June 2018.

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