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Document And Entity Information - shares
 9 Months Ended
Oct. 03, 2015
Nov. 04, 2015
Entity Registrant Name RCM TECHNOLOGIES INC  
Entity Central Index Key 0000700841  
Trading Symbol rcmt  
Current Fiscal Year End Date --01-02  
Entity Filer Category Smaller Reporting Company  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Well-known Seasoned Issuer No  
Entity Common Stock, Shares Outstanding (in shares)   12,276,034
Document Type 10-Q  
Document Period End Date Oct. 03, 2015  
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q3  
Amendment Flag false