Balance Sheets (Current Period Unaudited) - USD ($)	Oct. 01, 2022	Dec. 25, 2021
Current assets:
Cash and cash equivalents	$ 5,598,503	$ 5,050,312
Accounts receivable-trade, net	5,835,738	4,870,021
Inventories, net	4,868,550	3,911,602
Prepaid expenses and other current assets	246,680	225,873
Total current assets	16,549,471	14,057,808
Property and equipment:
Production equipment	10,771,477	10,489,729
Furniture and office equipment	940,128	673,305
Leasehold improvements	968,509	951,384
Total cost	12,680,114	12,114,418
Accumulated depreciation and amortization	(11,317,632)	(11,028,154)
Construction in progress	46,267	246,669
Net property and equipment	1,408,749	1,332,933
Right-of-use lease asset	497,000	586,000
Deferred taxes, net	2,118,223	2,823,978
Total assets	20,573,443	18,800,719
Current liabilities:
Note payable, current portion	43,136	55,906
Accounts payable	2,044,857	2,100,251
Accrued expenses	865,537	1,086,429
Deferred revenue	1,707,138	1,707,138
Current lease liability	157,000	155,000
Total current liabilities	4,817,668	5,104,724
Note payable less current portion	65,947	98,684
Long-term lease liability	340,000	431,000
Total liabilities	5,223,615	5,634,408
Commitments (note 4)
Stockholders` equity:
Common stock, $0.01 par value, authorized 20,000,000 shares; issued 14,438,786 and 14,350,786, respectively; outstanding 14,434,468 and 14,348,451, respectively; at October 1, 2022 and December 25, 2021;	144,388	143,508
Additional paid-in capital	39,620,372	39,281,810
Accumulated deficit	(24,394,083)	(26,256,492)
Less cost of 4,318 and 335 common shares repurchased, respectively; at October 1, 2022 and December 25, 2021	(20,849)	(2,515)
Total stockholders` equity	15,349,828	13,166,311
Total liabilities and stockholders` equity	$ 20,573,443	$ 18,800,719