Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019
Cash flows from operating activities:
Net income (loss)	$ 900,885	$ (493,615)
Adjustments to reconcile net income(loss) to cash provided by (used in) operating activities:
Depreciation and amortization	261,688	278,369
Share-based compensation	83,063	87,647
Gain on sale of property and equipment	(5,000)
Changes in:
Accounts receivable-trade	(888,897)	(1,057,298)
Inventories	(773,044)	292,034
Prepaid expenses and other current assets	(25,451)	(64,304)
Accounts payable	333,743	4,819
Accrued expenses	93,828	(148,844)
Deferred revenue	461,887
Net cash provided by (used in) operating activities	442,702	(1,101,192)
Cash flows from investing activities:
Purchases of property and equipment	(233,270)	(166,011)
Proceeds from sale of property and equipment	5,000
Net cash used in investing activities	(228,270)	(166,011)
Cash flows from financing activities:
Net borrowings on line of credit	(222,823)	800,000
Payments on note payable	(8,962)
Net cash provided by (used in) financing activities	(231,785)	800,000
Net decrease in cash and cash equivalents	(17,353)	(467,203)
Cash and cash equivalents at beginning of period	133,965	628,804
Cash and cash equivalents at end of period	116,612	161,601
Supplemental disclosures of cash flows information:
Cash paid for interest	65,741
Supplemental disclosures of non-cash activity:
Issuance of note payable to finance equipment purchase	$ 208,583