Note 2 - Summary of Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 28, 2024 USD ($)	Dec. 30, 2023 USD ($)
Accounts Receivable, Allowance for Credit Loss	$ 10,000	$ 10,000
Impairment, Long-Lived Asset, Held-for-Use, Total	0	0
Contract with Customer, Rebates	0
Other Inventory, Materials, Supplies and Merchandise under Consignment, Gross	0
Income Tax Examination, Penalties and Interest Accrued	0	0
Unrecognized Tax Benefits, Uncertain Tax Positions	$ 0	$ 0
Number of Operating Segments	1
Number of Reportable Segments	1
Production Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	5 years
Production Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	7 years
Furniture and Office Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	3 years
Furniture and Office Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	5 years