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v3.22.2

Lease Obligations and Other Commitments - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
May 28, 2022 | May 29, 2021 | May 30, 2020
Commitments And Contingencies Disclosure [Abstract] |  |  |
Rent expense | $ 1.6 | $ 1.7 | $ 1.8

X
- Definition Lease expense. + References No definition available. + Details
Name: | rell_LeaseExpense
Namespace Prefix: | rell_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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