Note 6 - Intangible Assets (Tables)

12 Months Ended

Dec. 29, 2024

Notes Tables

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	December 29, 2024
	Remaining Useful Life		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Capitalized patent litigation costs		9	$	418	$	(39	)	$	378
Total intangible assets related to patents			$	418	$	(39	)	$	378

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

	Amount
Annual Fiscal Years
2025	$	39
2026		39
2027		39
2028		39
2029		39
Thereafter		183
Total	$	378

Sensi ML [Member]

Notes Tables

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	December 29, 2024
	Remaining Useful Life		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Developed technology		4	$	959	$	(575	)	$	384
Customer relationships		—		81		(81	)		—
Trade names and trademarks		4		116		(70	)		46
Total acquired identifiable intangible assets			$	1,156	$	(726	)	$	430

	December 31, 2023
	Remaining Useful Life		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Developed technology		5	$	959	$	(480	)	$	479
Customer relationships		—		81		(81	)		—
Trade names and trademarks		5		116		(58	)		58
Total acquired identifiable intangible assets			$	1,156	$	(619	)	$	537

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

	Amount
Annual Fiscal Years
2025	$	107
2026		107
2027		107
2028		109
Total	$	430