Inventories (Tables)

3 Months Ended

Aug. 31, 2019

Inventories

Inventories are stated at the lower of cost, determined by the first-in, first-out method, or net realizable value. The components of inventories follow:

	August 31,		May 31,
	2019		2019
	(in thousands)
Raw materials	$	42,964	$	41,594
Work-in-process		5,901		5,581
Finished and purchased goods		38,817		38,817
	$	87,682	$	85,992