CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2012	Apr. 01, 2011
Sales	$ 7,817	$ 5,637
Cost of sales	4,548	4,176
Gross profit	3,269	1,461
Operating expenses:
Selling, general and administrative (excluding pension)	1,472	1,291
Research and development	604	751
Pension	555	425
Total operating expenses	2,631	2,467
Operating income (loss)	638	(1,006)
Other expense, net	(217)	(90)
Income (loss) before income tax provision	421	(1,096)
Income tax provision	(61)	(42)
Net income (loss)	360	(1,138)
Net income (loss) per common share - basic and diluted	$ 0.03	$ (0.10)
Weighted average common shares outstanding - basic	11,089	11,089
Weighted average common shares outstanding - diluted	11,125	11,089
Comprehensive Income
Net income (loss)	360	(1,138)
Other comprehensive income:
Unrealized gains on marketable securities	168	24
Comprehensive income (loss)	$ 528	$ (1,114)