Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jul. 01, 2017	Apr. 01, 2017
Property, plant and equipment
Property, plant and equipment, at cost	$ 80,039	$ 78,695
Accumulated depreciation	(22,452)	(21,731)
Property, plant and equipment, net	57,587	56,964
Land [Member]
Property, plant and equipment
Property, plant and equipment, at cost	22,577	22,897
Buildings and improvements [Member]
Property, plant and equipment
Property, plant and equipment, at cost	35,616	34,180
Machinery and equipment [Member]
Property, plant and equipment
Property, plant and equipment, at cost	$ 21,846	$ 21,618