Name:	rcon_InvestmentInUnconsolidatedEntityLineItems
Namespace Prefix:	rcon_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of cash outflow to acquire investment in equity securities without readily determinable fair value, classified as investing activity.

No definition available.

Name:	rcon_PaymentsToAcquireEquitySecuritiesWithoutReadilyDeterminableFairValue
Namespace Prefix:	rcon_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Percentage of equity interest retained post transfer.

No definition available.

Name:	rcon_PercentageOfEquityInterestRetainedPostTransfer
Namespace Prefix:	rcon_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

Percentage of ownership interest in unconsolidated entity.

No definition available.

Name:	rcon_PercentageOfOwnershipInterestInUnconsolidatedEntity
Namespace Prefix:	rcon_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

Represents the percentage of equity interest transferred.

No definition available.

Name:	rcon_PercentageOfOwnershipInterestTransferred
Namespace Prefix:	rcon_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-28

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

The cash outflow associated with the acquisition of a controlling interest in another entity or an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13