Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 28, 2025	Jun. 29, 2024
Cash flows from operating activities:
Net income (loss)	$ 199,795	$ (1,097,458)
Adjustments to reconcile net income (loss) to cash used in operating activities:
Depreciation and amortization	321,189	237,954
Share-based compensation	171,540	205,442
Realized gain on sale of marketable securities	(12,183)	0
Deferred taxes	135,828	(307,576)
Changes in:
Inventories	(867,180)	460,252
Prepaid expenses and other current assets	217,350	(90,306)
Accounts payable	232,511	52,788
Accrued expenses	123,184	(403,284)
Deferred revenue	(142,045)	(186,177)
Net cash used in operating activities	(603,467)	(918,660)
Cash flows from investing activities:
Purchases of property and equipment	(265,918)	(815,720)
Acquisition cost of patents and trademarks	(21,363)	0
Proceeds from sale of marketable securities	518,000	0
Purchase of marketable securities	(525,772)	(750,000)
Net cash used in investing activities	(295,053)	(1,565,720)
Cash flows from financing activities:
Payments on note payable	(8,130)	(23,002)
Net cash used in financing activities	(8,130)	(23,002)
Net decrease in cash and cash equivalents	(906,650)	(2,507,382)
Cash and cash equivalents at beginning of period	3,280,687	8,813,626
Cash and cash equivalents at end of period	2,374,037	6,306,244
Supplemental disclosures of cash flows information:
Cash paid for interest	26	1,465
Trade Accounts Receivable [Member]
Changes in:
Accounts receivables	(744,495)	324,862
Other Receivables [Member]
Changes in:
Accounts receivables	$ (238,961)	$ (115,157)