Note 15 - Plant Restructuring (Tables)

12 Months Ended

Mar. 31, 2018

Notes Tables

Restructuring and Related Costs [Table Text Block]

				Long-Lived			Other
	Severance			Asset			Cost
	Payable			Impairment			Payable			Total
				(In thousands)
Balance March 31, 2015	$	715		$	264		$	270		$	1,249
Charge to expense		162			5,065			5,075			10,302
Cash payments/write offs		(877	)		(354	)		(1,448	)		(2,679	)
Balance March 31, 2016		-			4,975			3,897			8,872
Charge to expense		1,578			(384	)		635			1,829
Cash payments/write offs		(1,541	)		182			(4,227	)		(5,586	)
Balance March 31, 2017		37			4,773			305			5,115
Charge to expense		722			(369	)		9,658			10,011
Cash payments/write offs		(198	)		(3,877	)		(468	)		(4,543	)
Balance March 31, 2018	$	561		$	527		$	9,495		$	10,583