Condensed Consolidated Statements of Operations (unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Condensed Consolidated Statements of Operations [Abstract]
Sales	$ 13,673	$ 13,226	$ 41,729	$ 39,528
Cost of sales	11,023	10,709	33,772	32,818
Gross margin	2,650	2,517	7,957	6,710
Selling, general and administrative expenses	3,484	3,491	11,132	10,598
Operating loss	(834)	(974)	(3,175)	(3,888)
Interest expense, net	(121)	(68)	(500)	(212)
Loss before income tax benefit	(955)	(1,042)	(3,675)	(4,100)
Income tax benefit	238	0	238	0
Net loss	$ (717)	$ (1,042)	$ (3,437)	$ (4,100)
Basic and diluted loss per share of common stock (in dollars per share)	$ (0.14)	$ (0.22)	$ (0.69)	$ (0.86)
Shares used in computing basic and diluted loss per share (in shares)	5,061	4,791	4,976	4,765