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Note 6 - Acquisitions and Divestitures - Maximum Deferred Consideration Payments (Details) $ in Thousands | Apr. 02, 2022 USD ($)
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December 31, 2022 | $ 103
December 30, 2023 | 600
Estimated future contingent consideration payments | $ 703

X
- Definition Represents estimated future contingent consideration payments. + References No definition available. + Details
Name: | rcmt_EstimatedFutureContingentConsiderationPayments
Namespace Prefix: | rcmt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents estimated future contingent consideration payments in next fiscal year following current fiscal year. + References No definition available. + Details
Name: | rcmt_EstimatedFutureContingentConsiderationPaymentsYearOne
Namespace Prefix: | rcmt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents estimated future contingent consideration payments in year two. + References No definition available. + Details
Name: | rcmt_EstimatedFutureContingentConsiderationPaymentsYearTwo
Namespace Prefix: | rcmt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant