Inventories (Tables)

12 Months Ended

Mar. 31, 2021

Inventory Disclosure [Abstract]

Components of Inventories

The components of inventories are as follows:

	March 31, 2021		March 31, 2020
	(in $000's)
Raw materials and supplies	$	27,782	$	31,411
Work-in-progress	$	35,187		35,008
Finished goods	$	18,090		23,669
	$	81,059	$	90,088