Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Cash flows from operating activities:
Net income (loss)	$ (638,202)	$ (3,705,967)
Adjustments to reconcile net income (loss) to cash provided (used) by operating activities:
Share-based compensation	133,671	220,654
Depreciation and amortization	525,783	568,164
Deferred taxes	38,874	2,851,919
Gain on sale of property and equipment	(6,946)	(13,645)
Changes in operating assets and liabilities:
Accounts receivable – trade	(1,033,854)	(109,718)
Inventories	93,109	(1,083,420)
Prepaid expenses and other current assets	8,552	(55,252)
Accounts payable	(243,846)	733,878
Accrued expenses	(160,149)	319,826
Deferred revenue	21,110	(100,000)
Net cash provided (used) by operating activities	(1,261,898)	(373,561)
Cash flows from investing activities:
Purchases of property and equipment	(489,475)	(350,852)
Proceeds from sale of property and equipment	6,946	13,645
Net cash used by investing activities	(482,529)	(337,207)
Cash flows from financing activities:
Net borrowings on lines of credit	1,249,588
Net cash provided by financing activities	1,249,588
Net increase (decrease) in cash and cash equivalents	(494,839)	(710,768)
Cash and cash equivalents at beginning of year	628,804	1,339,572
Cash and cash equivalents at end of year	133,965	628,804
Supplemental cash flow information:
Income taxes paid (refunded), net	(67,311)	436
Interest paid	$ 44,113	$ 34,791