Business Segments and Major Customers (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011	Dec. 31, 2011
Revenues	$ 12,733	$ 15,472	$ 40,077	$ 49,542
Income (loss) from operations	171	(785)	(1,370)	(2,657)
Total Assets	33,720	37,313	33,720	37,313	35,287
North America [Member]
Revenues	9,219	11,474	29,806	37,782
Income (loss) from operations	2,616	3,132	8,233	9,925
Total Assets	8,750	10,765	8,750	10,765	7,895
EMEA [member]
Revenues	3,514	3,998	10,271	11,760
Income (loss) from operations	608	297	1,563	1,507
Total Assets	3,912	5,487	3,912	5,487	3,533
Not Allocated to Segments [Member]
Income (loss) from operations	(3,053)	(4,214)	(11,166)	(14,089)
Total Assets	$ 21,058	$ 21,061	$ 21,058	$ 21,061	$ 23,859