Pension Plan and Postretirement Health Care and Life Insurance Benefits (Tables)

9 Months Ended

Dec. 29, 2018

Retirement Benefits [Abstract]

Schedule of defined benefit pension plan

Pension Plan:

	Three Months Ended						Nine Months Ended
	December 29, 2018			December 30, 2017			December 29, 2018			December 30, 2017
Components of net periodic benefit cost:
Service cost	$	64		$	58		$	192		$	174
Interest cost		221			226			663			678
Expected return on plan assets		(417	)		(403	)		(1,251	)		(1,209	)
Amortization of prior service cost		9			9			27			27
Amortization of losses		249			302			747			906
Net periodic benefit cost	$	126		$	192		$	378		$	576

Schedule of postretirement benefit costs

Postretirement Health Care and Life Insurance Benefits:

	Three Months Ended						Nine Months Ended
	December 29, 2018			December 30, 2017			December 29, 2018			December 30, 2017
Components of net periodic benefit cost:
Service cost	$	12		$	8		$	36		$	24
Interest cost		23			25			69			75
Amortization of prior service cost		1			1			3			3
Amortization of losses		(7	)		(1	)		(21	)		(3	)
Net periodic benefit cost	$	29		$	33		$	87		$	99