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Note 4 - Fair Value of Marketable Securities - Marketable Securities Purchased (Details) - USD ($)	Jun. 28, 2025	Dec. 28, 2024
Cost basis	$ 1,033,947	$ 1,015,501
Unrealized gain	10,978	15,500
Total fair value	$ 1,044,925	$ 1,031,001

X

- Definition

Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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