Pension Plan (Details 4) - Pension Plan [Member] - USD ($) $ in Thousands	12 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Apr. 01, 2017
Components of net periodic benefit cost:
Service cost	$ 258	$ 232	$ 251
Interest cost	885	904	889
Expected return on plan assets	(1,667)	(1,610)	(1,581)
Amortization of prior service cost	35	35	60
Amortization of losses	995	1,207	1,394
Net periodic benefit cost	$ 506	$ 768	$ 1,013