Note 6 - Acquisitions and Divestitures - Maximum Deferred Consideration Payments (Details) $ in Thousands	Jun. 29, 2024 USD ($)
The four quarters following June 29, 2024	$ 300
Thereafter	1,671
Estimated future contingent consideration payments	$ 1,971

Represents estimated future contingent consideration payments in next fiscal year following current fiscal year.

No definition available.

Name:	rcmt_EstimatedFutureContingentConsiderationPaymentsYearOne
Namespace Prefix:	rcmt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant