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Note 14 - Segment Information (Details) - Total Assets by Geographic Area (USD $)
In Thousands, unless otherwise specified
Jan. 03, 2015
Dec. 28, 2013
Total Assets    
Total Assets $ 87,273us-gaap_Assets $ 86,524us-gaap_Assets
United States [Member]    
Total Assets    
Total Assets 56,764us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= rcmt_UnitedStatesMember		 62,198us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= rcmt_UnitedStatesMember
Canada [Member]    
Total Assets    
Total Assets 28,776us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= rcmt_CanadaMember		 22,993us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= rcmt_CanadaMember
Puerto Rico [Member]    
Total Assets    
Total Assets $ 1,733us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= rcmt_PuertoRicoMember		 $ 1,333us-gaap_Assets
/ us-gaap_StatementGeographicalAxis
= rcmt_PuertoRicoMember