Note 6 - Acquisitions and Divestitures - Maximum Deferred Consideration Payments (Details) $ in Thousands	Apr. 01, 2023 USD ($)
The four quarters following April 1, 2023	$ 472
Thereafter	1,970
Estimated future contingent consideration payments	$ 2,442

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