Note 14 - Segment Information - Revenues by Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021
Revenues	$ 203,875	$ 150,409
UNITED STATES
Revenues	186,169	126,238
CANADA
Revenues	9,578	15,310
PUERTO RICO
Revenues	5,237	5,702
SERBIA
Revenues	$ 2,891	$ 3,159