Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016
Cash flows from operating activities:
Net income (loss)	$ (924,389)	$ (200,395)
Depreciation and amortization	412,982	380,901
Share-based compensation	149,068	153,557
Deferred taxes	(623,000)	(237,000)
Excess tax benefit from stock options exercised		(2,814)
Gain on sale of property and equipment		(40,000)
Changes in:
Accounts receivable-trade, net	(1,074,569)	1,116,298
Inventories	295,623	490,523
Prepaid expenses	8,864	(11,500)
Accounts payable	174,735	(804,996)
Accrued expenses	(8,075)	(322,968)
Net cash provided by (used in) operating activities	(1,588,761)	521,606
Cash flows from investing activities:
Purchases of property and equipment	(129,389)	(520,430)
Proceeds from sale of property and equipment		40,000
Net cash used in investing activities	(129,389)	(480,430)
Cash flows from financing activities:
Proceeds from issuance of common stock		11,836
Excess tax benefit from stock options exercised		2,814
Repurchase of common stock		(10,000)
Net cash provided by financing activities		4,650
Net change in cash and cash equivalents	(1,718,150)	45,826
Cash and cash equivalents at beginning of period	3,407,760	3,412,649
Cash and cash equivalents at end of period	1,689,610	3,458,475
Supplemental cash flow information:
Cash paid for taxes, net of refunds		$ 8,000