Note 6 - Retirement Plans (Tables)

3 Months Ended

Jun. 30, 2018

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Three Months Ended
	June 30, 2018			July 1, 2017
	(In thousands)
Service Cost	$	2,442		$	1,981
Interest Cost		2,243			1,985
Expected Return on Plan Assets		(3,596	)		(3,482	)
Amortization of Prior Service Cost		30			-
Amortization of Net Gain		303			30
Net Periodic Benefit Cost	$	1,422		$	514