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v3.20.1

PURCHASE ADVANCES, NET - Movement of allowance for doubtful accounts (Details) - Third Party [Member] | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 USD ($) | Dec. 31, 2019 CNY (¥) | Jun. 30, 2019 CNY (¥)
Beginning balance | $ 35,663 | ¥ 248,500 | ¥ 452,632
Charge to expense | 6,817 | 47,500 | 191,473
Less: write-off | 0 | 0 | (395,605)
Ending balance | $ 42,480 | ¥ 296,000 | ¥ 248,500

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- Definition Allowances for doubtful accounts in purchase advance third party with in one year as of balance sheet date. + References No definition available. + Details
Name: | rcon_AllowanceForDoubtfulAccountsAdvancesOnInventoryPurchase
Namespace Prefix: | rcon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of direct write-downs of accounts receivable charged against the allowance to suppliers third party and related party. + References No definition available. + Details
Name: | rcon_AllowanceForDoubtfulAccountsAdvancesOnInventoryPurchaseWriteoffs
Namespace Prefix: | rcon_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of expense related to write-down of allowance for doubtful accounts in advance to suppliers third party and related party. + References No definition available. + Details
Name: | rcon_ProvisionForDoubtfulAccountsAdvancesToInventoryPurchase
Namespace Prefix: | rcon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=rcon_ThirdPartyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |