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Note 5 - Property and Equipment (Details) (USD $) In Thousands, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 27, 2014 | Sep. 27, 2013
Property, Plant and Equipment [Abstract] |  |
Annual Depreciation Rate | 20.00% |
Write Off of Fully Depreciated Property and Equipment | $ 916 | $ 1,149

X
- Definition Represents the annual depreciation rate. + References No definition available. + Details
Name: | rcmt_AnnualDepreciationRate
Namespace Prefix: | rcmt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the write off for fully depreciated property and equipment. + References No definition available. + Details
Name: | rcmt_WriteOffOfFullyDepreciatedPropertyAndEquipment
Namespace Prefix: | rcmt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration