Note 14 - Segment Information - Total Assets by Geographic Area (Details) - USD ($) $ in Thousands	Oct. 02, 2021	Jan. 02, 2021	Sep. 26, 2020
Total assets	$ 70,291	$ 68,339	$ 62,553
UNITED STATES
Total assets	63,534	56,308
CANADA
Total assets	1,977	7,067
PUERTO RICO
Total assets	1,393	1,483
SERBIA
Total assets	$ 3,387	$ 3,481

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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+ Details