CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2012	Sep. 30, 2011	Sep. 28, 2012	Sep. 30, 2011
Sales	$ 5,359	$ 6,909	$ 17,922	$ 19,128
Cost of sales	3,299	4,765	11,387	13,229
Gross profit	2,060	2,144	6,535	5,899
Operating expenses:
Selling, general and administrative (excluding pension)	1,658	1,381	4,409	4,062
Research and development	662	703	1,926	2,189
Pension	590	541	1,699	1,486
Total operating expenses	2,910	2,625	8,034	7,737
Operating loss	(850)	(481)	(1,499)	(1,838)
Other expense, net	(200)	(170)	(601)	(433)
Loss on condemnation of property		(608)		(608)
Loss before income tax provision	(1,050)	(1,259)	(2,100)	(2,879)
Income tax provision	(21)	(24)	(95)	(91)
Net loss	(1,071)	(1,283)	(2,195)	(2,970)
Net loss per common share - basic and diluted	$ (0.10)	$ (0.12)	$ (0.20)	$ (0.27)
Weighted average common shares outstanding - basic and diluted	11,089	11,089	11,089	11,089
Comprehensive Loss
Net loss	(1,071)	(1,283)	(2,195)	(2,970)
Unrealized gain (loss) on marketable securities	90	(316)	194	(313)
Comprehensive loss	$ (981)	$ (1,599)	$ (2,001)	$ (3,283)