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Share Repurchase	12 Months Ended
	Dec. 31, 2019
Share Repurchase
Share Repurchase	14. Share Repurchase Treasury stock represents shares repurchased by the Company that are no longer outstanding and are held by the Company. Treasury stock is accounted for under the cost method. In 2017, the Company used US$4,809 (RMB31,280) to repurchase 198,694 ADSs (represents 99,347 ordinary shares). In April 2017, the Company canceled 2,492,146 ADSs (represents 1,246,073 ordinary shares) with a carrying amount of US$18,667 (RMB121,452). In 2019, the Company canceled remaining 280,958 ADSs (represents 140,479 ordinary shares) with a carrying amount of US$6,190 (RMB40,267). As of December 31, 2019, all treasure stock have been retired.

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- Definition

The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-URI http://asc.fasb.org/subtopic&trid=2208821

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