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SUBSEQUENT EVENTS (Details) - CNY (¥)		12 Months Ended
	Nov. 10, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 14, 2021	Jun. 26, 2020	May 21, 2020
Subsequent Event [Line Items]
Number of warrants issued		2,800,000
Number of warrants to purchase ordinary shares			1,680,000			911,112
Gross proceeds from warrants exercises		¥ 21,130,035	¥ 0
Pre-funded warrants
Subsequent Event [Line Items]
Number of warrants to purchase ordinary shares				8,814,102
Class A ordinary shares
Subsequent Event [Line Items]
Number of warrants to purchase ordinary shares		8,814,102		6,014,102	1,680,000	911,112
Starry | Class A ordinary shares
Subsequent Event [Line Items]
Number of shares issued	500,000

X

- Definition

Number of warrants or rights issued.

+ References

No definition available.

+ Details

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X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644

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X

- Definition

The cash inflow associated with the amount received from holders exercising their stock warrants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585

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- Definition

Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

+ References

No definition available.

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

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