Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 30, 2017

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

The following table presents the composition of property, plant and equipment as of:

	December 30,			December 31,
	2017			2016
	(in thousands)
Land	$	6,298		$	6,298
Buildings and improvements		53,703			51,681
Machinery and equipment		79,015			79,421
Vehicles		12,914			11,415
Software		19,989			16,640
Construction in progress		7,347			6,319
Property, plant and equipment		179,266			171,774
Less: Accumulated depreciation		(95,133	)		(87,565	)
Property, plant and equipment, net	$	84,133		$	84,209