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INVENTORIES, NET - Additional Information (Details) | 6 Months Ended
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Dec. 31, 2019 USD ($) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
INVENTORIES, NET |  |  |
Provision For Inventories | $ 3,633 | ¥ 25,312 | ¥ 65,380

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- Definition Cumulative provision for inventories during the reporting period. + References No definition available. + Details
Name: | rcon_ProvisionForInventories
Namespace Prefix: | rcon_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_InventoryDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration