Note 16 - Plant Restructuring (Tables)

12 Months Ended

Mar. 31, 2023

Notes Tables

Restructuring and Related Costs [Table Text Block]

	Severance			Other
	Payable			Costs			Total
Balance March 31, 2020	$	202		$	-			202
Charge to expense		227			(45	)		182
Cash payments/write offs		(429	)		45			(384	)
Balance March 31, 2021		-			-			-
Charge to expense		-			70			70
Cash payments/write offs		-			(70	)		(70	)
Balance March 31, 2022		-			-			-
Charge to expense		361			3,189			3,550
Cash payments/write offs		(244	)		(3,189	)		(3,433	)
Balance March 31, 2023	$	117		$	-		$	117