Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income (loss)	$ 966,455	$ (1,522,028)	$ (45,735)
Share-based compensation	248,535	242,793	210,125
Depreciation and amortization	615,348	723,092	751,411
Write off of construction in progress		12,720
Deferred taxes	311,071	(1,306,156)	(380,538)
Excess tax benefit from stock options exercised	(117,401)		(126,049)
Provision for bad debt			18,011
Accounts receivable - trade	(24,308)	236,811	791,991
Inventories	273,616	681,302	(1,614,859)
Prepaid expenses and other current assets	(35,003)	11,721	(75,865)
Accounts payable	(87,404)	(284,684)	651,433
Accrued expenses	286,171	278,012	(98,179)
Net cash provided (used) by operating activities	2,437,080	(926,417)	81,746
Cash flows from investing activities:
Purchases of property and equipment	(666,915)	(209,987)	(635,255)
Net cash used by investing activities	(666,915)	(209,987)	(635,255)
Cash flows from financing activities:
Payment of capital lease obligations	(123,366)	(208,504)	(259,386)
Excess tax benefit from stock options exercised	117,401		126,049
(Repayment of) proceeds from line of credit	(500,000)	500,000
Proceeds from issuance of common stock	93,360	9,333	99,533
Repurchase of common stock	(93,360)		(73,480)
Net cash provided (used) by financing activities	(505,965)	300,829	(107,284)
Net increase (decrease) in cash and cash equivalents	1,264,200	(835,575)	(660,793)
Cash and cash equivalents at beginning of year	306,854	1,142,429	1,803,222
Cash and cash equivalents at end of year	1,571,054	306,854	1,142,429
Supplemental cash flow information:
Acquisition of production equipment under capital leases			238,900
Income taxes paid, net of refund			11,900
Interest paid	$ 30,327	$ 28,588	$ 32,672