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v3.20.1

CONTRACT ASSETS, NET - Movement of impairment of contract assets (Details) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 USD ($) | Dec. 31, 2019 CNY (¥) | Jun. 30, 2019 CNY (¥)
CONTRACT ASSETS, NET |  |  |
Beginning balance | $ 23,279 | ¥ 162,213 | ¥ 395,604
Reversal of expense | (2,723) | (18,976) | (233,391)
Ending balance | $ 20,556 | ¥ 143,237 | ¥ 162,213

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- Definition Amount of accumulated credit loss for right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130533-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118955202&loc=SL82895884-210446 + Details
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