Industry Segments

3 Months Ended

Mar. 29, 2014

Segment Reporting [Abstract]

Industry Segments

6. Industry Segments

Our reportable segments are business units that offer different products and are managed separately because each business requires different technology and marketing strategies. Our reportable segments are: semiconductor equipment, microwave communications and video cameras.

We allocate resources and evaluate the performance of segments based on profit or loss from operations, excluding interest, corporate expenses and unusual gains or losses. Intersegment sales were not significant for any period.

Financial information by industry segment is as follows (in thousands):

	Three Months Ended
	March 29, 2014			March 30, 2013
Net sales by segment:
Semiconductor equipment	$	60,170		$	48,584
Microwave communications		4,694			3,643
Video cameras		3,553			3,789
Total consolidated net sales and net sales for reportable segments	$	68,417		$	56,016
Segment profit (loss):
Semiconductor equipment	$	(825	)	$	(8,861	)
Microwave communications		(539	)		(2,372	)
Video cameras		121			207
Loss for reportable segments		(1,243	)		(11,026	)
Other unallocated amounts:
Corporate expenses		(2,175	)		(1,903	)
Interest and other, net		15			10
Loss before taxes	$	(3,403	)	$	(12,919	)

A small number of customers of our semiconductor equipment segment historically have been responsible for a significant portion of our consolidated net sales. Significant customer concentration information is as follows:

	Three Months Ended
	March 29, 2014	March 30, 2013
Customers individually accounting for more than 10% of consolidated net sales	two	one
Percentage of consolidated net sales	26%	20%