Property, Plant and Equipment, net (Details) - USD ($) $ in Thousands	Jun. 27, 2020	Mar. 28, 2020
Property, plant and equipment
Property, plant and equipment, at cost	$ 111,016	$ 109,822
Accumulated depreciation	(33,690)	(32,632)
Property, plant and equipment, net	77,326	77,190
Land
Property, plant and equipment
Property, plant and equipment, at cost	26,827	26,827
Buildings and improvements
Property, plant and equipment
Property, plant and equipment, at cost	52,820	52,011
Machinery and equipment
Property, plant and equipment
Property, plant and equipment, at cost	$ 31,369	$ 30,984