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LONG-TERM BORROWINGS DUE TO RELATED PARTY - Additional Information (Details) - Long-term Borrowings [Member]	6 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2019 CNY (¥)	Dec. 31, 2018 CNY (¥)	Jun. 30, 2019 CNY (¥)
Collateralized amount of borrowings due to related party		¥ 0		¥ 0
Interest Expense, Long-term Debt	$ 55,960	¥ 389,926	¥ 421,058

X

- Definition

The amount of borrowings collateralized which are due to related party.

+ References

No definition available.

+ Details

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Namespace Prefix:	rcon_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Aggregate amount of interest paid or due on all long-term debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.8)
-URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260

+ Details

Name:	us-gaap_InterestExpenseLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=rcon_LongtermBorrowingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: