Balance Sheets (Unaudited) - USD ($)	Jun. 27, 2020	Dec. 28, 2019
Current assets:
Cash and cash equivalents	$ 116,612	$ 133,965
Accounts receivable-trade, net	4,975,842	4,086,945
Inventories, net	3,872,868	3,099,824
Prepaid expenses and other current assets	173,237	147,786
Total current assets	9,138,559	7,468,520
Property and equipment:
Production equipment	10,008,886	9,649,169
Furniture and office equipment	508,423	508,423
Leasehold improvements	934,195	934,195
Total cost	11,451,504	11,091,787
Accumulated depreciation and amortization	(10,357,620)	(10,110,663)
Construction in progress	320,209	255,754
Net property and equipment	1,414,093	1,236,878
Right-of-use lease asset	100,000	171,000
Deferred taxes, net	147,873	147,873
Total assets	10,800,525	9,024,271
Current liabilities:
Borrowings against line of credit	1,026,765	1,249,588
Note payable, current portion	37,311
Accounts payable	1,770,160	1,436,417
Accrued expenses	908,994	815,166
Deferred revenue	482,997	21,110
Lease liability, current portion	100,000	148,000
Total current liabilities	4,326,227	3,670,281
Note payable less current portion	159,360
Long term lease liability		23,000
Total liabilities	4,485,587	3,693,281
Stockholders` equity:
Common stock, $0.01 par value, authorized 20,000,000 shares; issued 13,427,492; outstanding 13,207,436; at June 27, 2020 and December 28, 2019;	134,275	134,275
Additional paid-in capital	36,177,264	36,094,201
Accumulated deficit	(29,479,548)	(30,380,433)
Less cost of 220,056 common shares repurchased at June 27, 2020 and December 28, 2019	(517,053)	(517,053)
Total stockholders` equity	6,314,938	5,330,990
Total liabilities and stockholders` equity	$ 10,800,525	$ 9,024,271