SMTC Corporation Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Segmented Information (Details Textual)	3 Months Ended		6 Months Ended		12 Months Ended
Note 8 - Segmented Information (Details Textual)	Jul. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015	Jan. 03, 2016
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member] \| Major Customer1 [Member]
Concentration Risk, Percentage	22.10%	17.10%	18.20%	19.10%
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member] \| Major Customer2 [Member]
Concentration Risk, Percentage	17.60%	11.30%	15.80%	14.20%
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member]
Number of Major Customers	2	2	2
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Major Customer1 [Member]
Concentration Risk, Percentage			28.70%		16.80%
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| Major Customer2 [Member]
Concentration Risk, Percentage			5.10%		3.80%
Customer Concentration Risk [Member] \| Accounts Receivable [Member]
Number of Major Customers			2
Number of Major Customers			2