Business Segments and Major Customers (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 04, 2015	Mar. 29, 2014	Jan. 03, 2015
Segment Reporting Information [Line Items]
Revenues	$ 18,050	$ 16,237
Income (loss) from operations	(628)	8
Total assets	40,680	44,717	42,276
North America [Member]
Segment Reporting Information [Line Items]
Revenues	7,918	7,974
Income (loss) from operations	1,789	1,779
Total assets	6,647	5,489	7,398
EMEA [Member]
Segment Reporting Information [Line Items]
Revenues	10,025	8,263
Income (loss) from operations	2,072	1,577
Total assets	4,115	11,778	6,099
Strategic Alliances [Member]
Segment Reporting Information [Line Items]
Revenues	107	0
Income (loss) from operations	(352)	(145)
Total assets	3,000	0	3,030
Unallocated Amount To Segment [Member]
Segment Reporting Information [Line Items]
Revenues	0	0
Income (loss) from operations	(4,137)	(3,203)
Total assets	$ 26,918	$ 27,450	$ 25,749