Note 4 - Balance Sheet Components - Balance Sheet Components (Details) - USD ($) $ in Thousands	Dec. 29, 2024	Dec. 31, 2023
Inventories:
Work-in-process	$ 710	$ 1,602
Finished goods	230	427
Inventory, Net	940	2,029
Prepaid expenses and other current assets:
Prepaid taxes	498	498
Deferred charges	792	290
Other prepaid taxes, royalties, and other prepaid expenses	242	629
Other	134	144
Prepaid Expense and Other Assets, Current	1,666	1,561
Property and equipment:
Property and equipment, gross	29,863	22,199
Accumulated depreciation and amortization	(14,164)	(13,251)
Property, Plant and Equipment, Net	15,699	8,948
Capitalized internal-use software:
Capitalized software held for internal use	4,607	3,491
Accumulated amortization	(2,156)	(1,422)
Capitalized Computer Software, Net	2,451	2,069
Accrued liabilities:
Accrued compensation	865	1,910
Accrued employee benefits	76	57
Accrued payroll tax	124	197
Other	546	509
Accrued Liabilities, Current	1,611	2,673
Equipment [Member]
Property and equipment:
Property and equipment, gross	9,623	10,503
Software Tools [Member]
Property and equipment:
Property and equipment, gross	3,402	2,163
Tooling [Member]
Property and equipment:
Property and equipment, gross	14,357	7,085
Software and Software Development Costs [Member]
Property and equipment:
Property and equipment, gross	1,776	1,803
Furniture and Fixtures [Member]
Property and equipment:
Property and equipment, gross	58	65
Leasehold Improvements [Member]
Property and equipment:
Property and equipment, gross	$ 647	$ 580