Note 15 - Plant Restructuring (Tables)

12 Months Ended

Mar. 31, 2024

Notes Tables

Restructuring and Related Costs [Table Text Block]

	Severance			Other
	Payable			Costs			Total
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
Charge to expense		213			212			425
Cash payments/write offs		(330	)		(212	)		(542	)
Balance March 31, 2024	$	-		$	-		$	-