CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 03, 2015	Mar. 28, 2014
Statement of Comprehensive Income
Sales	$ 8,002	$ 6,672
Cost of sales	(5,011)	(4,528)
Gross profit	2,991	2,144
Operating expenses:
Selling, general and administrative	(1,842)	(1,748)
Research and development	(595)	(560)
Pension	(375)	(209)
Total operating expenses	(2,812)	(2,517)
Operating income (loss)	179	(373)
Other expense, net	(25)	(169)
Income (loss) before income tax provision	154	(542)
Income tax provision	(51)	(9)
Net income (loss)	103	(551)
Net income (loss) per common share - basic and diluted	$ 0.01	$ (0.05)
Weighted average common shares outstanding - basic	11,089	11,089
Weighted average common shares outstanding - diluted	11,477	11,089
Comprehensive income (loss), net of tax:
Net income (loss)	103	(551)
Other comprehensive income:
Reclassification of pension expense to net income (loss)	195	102
Other comprehensive income	195	102
Total comprehensive income (loss)	$ 298	$ (449)