Note 7 - Accrued Expenses - Accrued Expenses (Details) - USD ($)	Jul. 01, 2023	Dec. 31, 2022
Accrued legal and accounting	$ 51,489	$ 35,398
Accrued payroll and related expenses	685,785	760,305
Accrued other	124,240	25,153
Accounts Payable and Accrued Liabilities, Current	$ 861,514	$ 820,856