Inventories (Tables)

12 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

Components of Inventories

The components of inventories are as follows:

	March 31, 2017		March 31, 2016
	(in $000's)
Raw materials and supplies	$	9,784	$	7,993
Work-in-progress		16,504		13,147
Finished goods		8,643		5,600
	$	34,931	$	26,740