Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 26, 2015	Dec. 27, 2014	Dec. 28, 2013
Cash flows from operating activities:
Net income	$ 450,619	$ 1,002,768	$ 966,455
Adjustments to reconcile net income to cash provided by operating activities:
Share-based compensation	283,507	348,649	248,535
Depreciation and amortization	545,673	576,745	615,348
Deferred taxes	176,063	175,437	311,071
Excess tax benefit from stock options exercised	(26,347)	(25,716)	(117,401)
Changes in operating assets and liabilities:
Accounts receivable - trade	16,712	(688,731)	(24,308)
Inventories	(103,490)	(345,255)	273,616
Prepaid expenses and other current assets	62,022	8,943	(35,003)
Accounts payable	270,146	260,509	(87,404)
Accrued expenses	(117,700)	(31,481)	286,171
Net cash provided by operating activities	1,557,205	1,281,865	2,437,080
Cash flows from investing activities:
Purchases of property and equipment	(476,683)	(501,501)	(666,915)
Net cash used by investing activities	$ (476,683)	(501,501)	(666,915)
Cash flows from financing activities:
Payment of capital lease obligations		(76,372)	(123,366)
Excess tax benefit from stock options exercised	$ 26,347	$ 25,716	117,401
Repayment of line of credit			(500,000)
Proceeds from issuance of common stock	$ 172,670	$ 111,726	93,360
Repurchase of common stock	(172,470)	(106,908)	(93,360)
Net cash provided (used) by financing activities	26,547	(45,838)	(505,965)
Net increase in cash and cash equivalents	1,107,069	734,526	1,264,200
Cash and cash equivalents at beginning of year	2,305,580	1,571,054	306,854
Cash and cash equivalents at end of year	3,412,649	2,305,580	$ 1,571,054
Supplemental cash flow information:
Income taxes paid, net of refund	$ 12,005	34,706
Interest paid		$ 3,554	$ 30,327