Segment Reporting (Tables)

3 Months Ended

Mar. 28, 2020

Segment Reporting [Abstract]

Information for Each Reportable Segment

Information for each reportable segment for the three months ended March 28, 2020 and March 30, 2019 is as follows:

Net Revenues

	Three Months Ended
	March 28, 2020		March 30, 2019
	(In thousands)
TFE	$	7,962	$	18,945
Photonics		10,878		5,882
Total segment net revenues	$	18,840	$	24,827

Operating Income (Loss)

	Three Months Ended
	March 28, 2020			March 30, 2019
	(In thousands)
TFE	$	(2,531	)	$	(603	)
Photonics		2,912			(640	)
Total segment operating income (loss)		381			(1,243	)
Unallocated costs		(1,481	)		(756	)
Loss from operations		(1,100	)		(1,999	)
Interest income and other income (expense), net		142			160
Loss before provision for income taxes	$	(958	)	$	(1,839	)

Segment Assets

Total assets for each reportable segment as of March 28, 2020 and December 28, 2019 are as follows:

Assets

	March 28, 2020		December 28, 2019
	(In thousands)
TFE	$	46,007	$	51,153
Photonics		23,487		22,071
Total segment assets		69,494		73,244
Cash, cash equivalents and investments		42,440		42,024
Restricted cash		787		787
Deferred income taxes		6,138		6,252
Other current assets		1,195		752
Common property, plant and equipment		1,531		1,307
Common operating lease right-of-use assets		1,794		1,898
Other assets		—		78
Consolidated total assets	$	123,379	$	126,322