Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Consolidated Statements of Operations [Abstract]
Sales	$ 55,266	$ 56,269
Cost of sales	45,669	47,114
Gross margin	9,597	9,155
Selling, general and administrative expenses	13,620	15,801
Operating loss	(4,023)	(6,646)
Interest expense, net	(332)	(298)
Net loss	$ (4,355)	$ (6,944)
Basic and diluted loss per share of common stock (in dollars per share)	$ (0.91)	$ (1.48)
Shares used in computing basic and diluted loss per share (in shares)	4,775	4,693