Balance Sheets - USD ($)	Dec. 28, 2024	Dec. 30, 2023
Current assets:
Cash and cash equivalents	$ 3,280,687	$ 8,813,626
Marketable securities, at fair value	1,031,001
Inventories, net	4,331,066	4,581,930
Prepaid expenses and other current assets	480,986	276,349
Total current assets	14,159,016	18,144,251
Property and equipment:
Production equipment	10,382,379	11,271,982
Furniture and office equipment	891,921	952,883
Leasehold improvements	997,830	985,649
Total cost	12,272,130	13,210,514
Accumulated depreciation and amortization	(10,377,756)	(11,936,004)
Construction in progress	108,874	281,629
Net property and equipment	2,003,248	1,556,139
Right-of-use lease asset	186,000	332,000
Deferred taxes, net	2,528,682	1,569,726
Total assets	18,876,946	21,602,116
Current liabilities:
Notes payable, current portion	8,130	46,797
Accounts payable	3,053,712	2,535,086
Accrued expenses	913,279	1,075,137
Deferred revenue	172,429	251,755
Lease liability, current portion	160,000	160,000
Total current liabilities	4,307,550	4,068,775
Notes payable less current portion	0	8,090
Deferred revenue – long term	31,277	31,277
Long term lease liability	26,000	172,000
Total liabilities	4,364,827	4,280,142
Stockholders’ Equity:
Common stock, $0.01 par value, authorized 20,000,000 shares; issued 14,661,487 and 14, 601,487 shares; outstanding 14,525,960 and 14, 519,215; at December 28, 2024 and December 30, 2023, respectively	146,615	146,015
Additional paid-in capital	40,580,387	40,180,893
Accumulated other comprehensive income	15,500
Accumulated deficit	(25,890,245)	(22,754,796)
Less cost of 135,527 and 82,272 common shares repurchased at December 28, 2024 and December 30, 2023, respectively	(340,138)	(250,138)
Total stockholders’ equity	14,512,119	17,321,974
Total liabilities and stockholders’ equity	18,876,946	21,602,116
Trade Accounts Receivable [Member]
Current assets:
Accounts receivable	4,858,208	4,389,155
Other Receivables [Member]
Current assets:
Accounts receivable	$ 177,068	$ 83,191