Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015
Cash flows from operating activities:
Net income (loss)	$ (1,717,702)	$ (453,617)	$ 450,619
Adjustments to reconcile net income (loss) to cash provided (used) by operating activities:
Share-based compensation	287,231	193,117	283,507
Depreciation and amortization	566,787	550,761	545,673
Deferred taxes	(211,317)	(673,785)	176,063
Excess tax benefit from stock options exercised		(2,815)	(26,347)
Gain on sale of property and equipment		(40,000)
Changes in operating assets and liabilities:
Accounts receivable – trade, net	(983,767)	1,612,873	16,712
Inventories	(138,552)	661,483	(103,490)
Prepaid expenses and other current assets	(12,643)	16,318	62,022
Accounts payable	283,903	(960,082)	270,146
Accrued expenses	31,530	(307,957)	(117,700)
Deferred revenue	100,000
Net cash provided (used) by operating activities	(1,794,530)	596,296	1,557,205
Cash flows from investing activities:
Purchases of property and equipment	(273,658)	(645,835)	(476,683)
Proceeds from sale of property and equipment		40,000
Net cash used by investing activities	(273,658)	(605,835)	(476,683)
Cash flows from financing activities:
Excess tax benefit from stock options exercised		2,815	26,347
Proceeds from issuance of common stock		11,835	172,670
Repurchase of common stock		(10,000)	(172,470)
Net cash provided by financing activities		4,650	26,547
Net increase (decrease) in cash and cash equivalents	(2,068,188)	(4,889)	1,107,069
Cash and cash equivalents at beginning of year	3,407,760	3,412,649	2,305,580
Cash and cash equivalents at end of year	1,339,572	3,407,760	3,412,649
Supplemental cash flow information:
Income taxes paid, net of refund	$ 436	$ 436	$ 12,005