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Note 14 - Segment Information (Details) - Total Assets by Geographic Area (USD $) In Thousands, unless otherwise specified | Apr. 04, 2015 | Jan. 03, 2015 | Mar. 29, 2014
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Total assets |  |  |
Total Assets | $ 85,467 us-gaap_Assets | $ 87,273 us-gaap_Assets | $ 88,624 us-gaap_Assets
United States [Member] |  |  |
Total assets |  |  |
Total Assets | 55,603 us-gaap_Assets / us-gaap_StatementGeographicalAxis = rcmt_UnitedStatesMember | 56,764 us-gaap_Assets / us-gaap_StatementGeographicalAxis = rcmt_UnitedStatesMember |
Canada [Member] |  |  |
Total assets |  |  |
Total Assets | 27,968 us-gaap_Assets / us-gaap_StatementGeographicalAxis = rcmt_CanadaMember | 28,776 us-gaap_Assets / us-gaap_StatementGeographicalAxis = rcmt_CanadaMember |
Puerto Rico [Member] |  |  |
Total assets |  |  |
Total Assets | $ 1,896 us-gaap_Assets / us-gaap_StatementGeographicalAxis = rcmt_PuertoRicoMember | $ 1,733 us-gaap_Assets / us-gaap_StatementGeographicalAxis = rcmt_PuertoRicoMember |

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
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