Note 16 - Plant Restructuring (Tables)

12 Months Ended

Mar. 31, 2021

Notes Tables

Restructuring and Related Costs [Table Text Block]

				Other
	Severance			Cost
	Payable			Payable			Total
Balance March 31, 2019	$	225		$	1			226
Charge to expense		1,229			5,817			7,046
Cash payments/write offs		(1,252	)		(5,818	)		(7,070	)
Balance March 31, 2020		202			-			202
Charge to expense		227			(45	)		182
Cash payments/write offs		(429	)		45			(384	)
Balance March 31, 2021	$	-		$	-		$	-