Business Segments and Major Customers (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015	Jan. 02, 2016
Segment Reporting Information [Line Items]
Revenues	$ 18,899,000	$ 16,889,000	$ 39,216,000	$ 34,939,000
Income (loss) from operations	(12,775,000)	(2,608,000)	(13,519,000)	(3,236,000)
Total assets	26,230,000	39,190,000	26,230,000	39,190,000	$ 41,359,000
Operating Segments [Member] | North America [Member]
Segment Reporting Information [Line Items]
Revenues	7,525,000	7,472,000	16,038,000	15,390,000
Income (loss) from operations	1,603,000	1,337,000	3,357,000	3,126,000
Total assets	6,031,000	5,639,000	6,031,000	5,639,000	6,831,000
Operating Segments [Member] | EMEA [Member]
Segment Reporting Information [Line Items]
Revenues	11,220,000	9,318,000	22,922,000	19,343,000
Income (loss) from operations	1,585,000	282,000	3,062,000	2,354,000
Total assets	9,466,000	6,296,000	9,466,000	6,296,000	9,725,000
Operating Segments [Member] | Strategic Alliances [Member]
Segment Reporting Information [Line Items]
Revenues	154,000	99,000	256,000	206,000
Income (loss) from operations	(58,000)	(507,000)	(134,000)	(859,000)
Total assets	694,000	2,700,000	694,000	2,700,000	626,000
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Income (loss) from operations	(15,905,000)	(3,720,000)	(19,804,000)	(7,857,000)
Total assets	10,039,000	24,555,000	10,039,000	24,555,000	$ 24,177,000
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 0