Note 14 - Segment Information - Revenues by Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Revenue	$ 284,680	$ 203,875	$ 150,409
UNITED STATES
Revenue	272,342	186,169	126,238
CANADA
Revenue	4,708	9,578	15,310
PUERTO RICO
Revenue	5,180	5,237	5,702
SERBIA
Revenue	$ 2,630	$ 2,891	$ 3,159

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details