Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ 601,654	$ (744,214)
Adjustments to reconcile net income (loss) to cash used in operating activities:
Depreciation and amortization	128,759	139,465
Share-based compensation	65,673	61,236
Gain on sale of property and equipment	(5,000)
Changes in:
Accounts receivable-trade	(1,872,279)	(138,667)
Inventories	(495,514)	115,342
Prepaid expenses and other current assets	(79,673)	(47,209)
Accounts payable	1,185,445	388,619
Accrued expenses	(123,245)	(255,980)
Deferred revenue	360,106
Net cash used in operating activities	(234,074)	(481,408)
Cash flows from investing activities:
Purchases of property and equipment	(107,600)	(116,327)
Proceeds from sale of property and equipment	5,000
Net cash used in investing activities	(102,600)	(116,327)
Cash flows from financing activities:
Net borrowings on line of credit	327,918	200,000
Payments on note payable	(2,954)
Net cash provided by financing activities	324,964	200,000
Net decrease in cash and cash equivalents	(11,710)	(397,735)
Cash and cash equivalents at beginning of period	133,965	628,804
Cash and cash equivalents at end of period	122,255	231,069
Supplemental disclosures of cash flows information:
Cash paid for interest	33,216
Supplemental disclosures of non-cash activity:
Issuance of note payable to finance equipment purchase	$ 208,583