Balance Sheets (Unaudited) - USD ($)	Mar. 27, 2021	Dec. 26, 2020
Current assets:
Cash and cash equivalents	$ 167,918	$ 195,203
Accounts receivable-trade, net	3,778,203	2,914,800
Inventories, net	3,631,152	3,709,471
Prepaid expenses and other current assets	293,275	71,506
Total current assets	7,870,548	6,890,980
Property and equipment:
Production equipment	10,326,614	10,265,471
Furniture and office equipment	568,846	568,846
Leasehold improvements	951,384	951,384
Total cost	11,846,844	11,785,701
Accumulated depreciation and amortization	(10,698,338)	(10,558,816)
Construction in progress	36,172	61,062
Net property and equipment	1,184,678	1,287,947
Right-of-use lease asset (note 4, leases)	664,000	25,000
Deferred taxes, net	117,000	117,000
Total Assets	9,836,226	8,320,927
Current liabilities:
Borrowings against line of credit	193,395
Note payable, current portion	58,833	58,134
Accounts payable	1,503,327	909,291
Accrued expenses	531,548	804,091
Deferred revenue	319,216	12,177
Lease liability, current portion	148,000	25,000
Total current liabilities	2,754,319	1,808,693
Note payable less current portion	139,608	154,570
Long term lease liability	516,000
Total liabilities	3,409,927	1,963,263
Stockholders’ equity:
Common stock, $0.01 par value, authorized 20,000,000 shares; issued 14,360,042 and 13,746,242 shares; outstanding 13,807,394 and 13,313,790 shares; at March 27, 2021 and December 26, 2020, respectively	143,600	137,462
Additional paid-in capital	37,925,674	36,688,894
Accumulated deficit	(29,441,466)	(29,472,369)
Less cost of 552,648 and 432,452 common shares repurchased at March 27, 2021 and December 26, 2020, respectively	(2,201,509)	(996,323)
Total stockholders’ equity	6,426,299	6,357,664
Total liabilities and stockholders’ equity	$ 9,836,226	$ 8,320,927