SMTC Corporation Annual report pursuant to Section 13 and 15(d)

Note 15 - Restructuring Charges (Details Textual) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 03, 2016 USD ($)	Dec. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jan. 01, 2017 USD ($)
Restructuring Charges, Total		$ 172	$ 1,732	$ 176
Facility Closing [Member]
Restructuring Charges, Total		$ 172
Employee Severance [Member]
Restructuring Charges, Total	$ 176		$ 1,732
Restructuring and Related Cost, Number of Positions Eliminated	1
Employee Severance [Member] \| MEXICO
Restructuring and Related Cost, Number of Positions Eliminated			49
Employee Severance [Member] \| CHINA
Restructuring and Related Cost, Number of Positions Eliminated			102
Employee Severance [Member] \| UNITED STATES
Restructuring and Related Cost, Number of Positions Eliminated			22
Employee Severance [Member] \| CANADA
Restructuring and Related Cost, Number of Positions Eliminated			10