Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

v3.8.0.1
Document And Entity Information - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Mar. 02, 2018
Jul. 02, 2017
Document Information [Line Items]      
Entity Registrant Name SMTC CORP    
Entity Central Index Key 0001108320    
Trading Symbol smtx    
Current Fiscal Year End Date --12-31    
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)   17,092,373  
Entity Public Float     $ 16.3
Document Type 10-K    
Document Period End Date Dec. 31, 2017    
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus FY    
Amendment Flag false