Property, Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 01, 2017	Apr. 02, 2016	Mar. 28, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 133,694	$ 132,453
Less accumulated depreciation	(112,075)	(107,910)
Property, plant and equipment, net	21,619	24,543
Depreciation and amortization	$ 6,900	6,800	$ 7,200
Document Period End Date	Apr. 01, 2017
Restructuring and Related Cost, Accelerated Depreciation	$ 1,400
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,152	2,152
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 36,204	36,487
Estimated useful lives	18 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 59,099	57,986
Estimated useful lives	5 years
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 36,239	$ 35,828
Estimated useful lives	5 years