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COMMITMENTS AND CONTINGENCY - Office Leases Commitment - short term (Details) - Jun. 30, 2022	CNY (¥)	USD ($)
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Total lease payments	¥ 6,295,576	$ 939,958
Office Leases Commitment
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2023	549,219	82,001
Total lease payments	¥ 549,219	$ 82,001

X

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980

+ Details

Name:	us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of commitment classified as other to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

Name:	us-gaap_OtherCommitmentDueInSecondYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_OtherCommitmentsAxis=rcon_OfficeLeasesCommitmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: