Note 6 - Intangible Assets - Schedule of Carrying Value of Intangible Assets (Details) - Sensi ML [Member] - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Gross Carrying Amount	$ 1,156	$ 1,156
Accumulated Amortization	(726)	(619)
Net Carrying Amount	$ 430	$ 537
Developed Technology Rights [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	4 years	5 years
Gross Carrying Amount	$ 959	$ 959
Accumulated Amortization	(575)	(480)
Net Carrying Amount	384	479
Customer Relationships [Member]
Gross Carrying Amount	81	81
Accumulated Amortization	(81)	(81)
Net Carrying Amount	$ 0	$ 0
Trademarks and Trade Names [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	4 years	5 years
Gross Carrying Amount	$ 116	$ 116
Accumulated Amortization	(70)	(58)
Net Carrying Amount	$ 46	$ 58