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Note 11 - Share-Based Compensation (Details) - Recognition of Unvested Share-based Awards Expenses (USD $) In Thousands, unless otherwise specified	Jan. 03, 2015
Note 11 - Share-Based Compensation (Details) - Recognition of Unvested Share-based Awards Expenses [Line Items]
Unrecognized expenses unvested share based awards	$ 2,035us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Fiscal Year 2015 [Member]
Note 11 - Share-Based Compensation (Details) - Recognition of Unvested Share-based Awards Expenses [Line Items]
Unrecognized expenses unvested share based awards	1,002us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_StatementScenarioAxis = rcmt_FiscalYear2015Member
Fiscal Year 2016 [Member]
Note 11 - Share-Based Compensation (Details) - Recognition of Unvested Share-based Awards Expenses [Line Items]
Unrecognized expenses unvested share based awards	564us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_StatementScenarioAxis = rcmt_FiscalYear2016Member
Fiscal Year 2017 [Member]
Note 11 - Share-Based Compensation (Details) - Recognition of Unvested Share-based Awards Expenses [Line Items]
Unrecognized expenses unvested share based awards	$ 469us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_StatementScenarioAxis = rcmt_FiscalYear2017Member

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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