Note 9 - Income Taxes - Components of Net Deferred Tax Assets (Details) - USD ($)	Dec. 30, 2023	Dec. 31, 2022
Deferred Tax Assets:
Net operating loss carryforwards	$ 0	$ 132,632
Stock compensation	209,609	209,092
Credit carryforwards	865,928	1,253,956
Inventory	84,955	80,628
Accrued liabilities	0	5,071
Depreciation	143,081	179,481
Capitalized R&D, net	263,421	205,878
Other	2,732	2,698
Net deferred tax assets	$ 1,569,726	$ 2,069,436

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-URI https://asc.fasb.org//1943274/2147482685/740-10-50-2

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.

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Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.

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-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-6

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities.

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