Note 20 - Segment and Geographic Information (Tables)

12 Months Ended

May 31, 2016

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Year Ended May 31
	2016		2015		2014
Net sales by product group:
Transfusion	$	317,345		326,850		330,547
Transplant & Molecular		62,627		62,450		57,509
Total	$	379,972		389,300		388,056

Revenue from External Customers by Products and Services [Table Text Block]

	Year Ended May 31
	2016		2015		2014
Net sales to customers by geography are as follows:
United States	$	241,199		238,639		239,204
Europe (A)		70,630		77,820		79,219
Canada		15,576		19,260		19,127
Other		52,567		53,581		50,506
Total	$	379,972		389,300		388,056

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

	As of May 31
	2016		2015
Long-lived assets (excluding goodwill and intangibles) by geography:
United States	$	55,080		52,764
Europe (B)		14,729		14,542
Canada		3,543		4,029
Other (C)		2,663		2,239
Total	$	76,015		73,574

	As of May 31
	2016		2015
Concentration of net assets by geography:
United States	$	200,226		241,522
Europe		102,593		100,071
Canada		28,617		30,274
Other (C)		13,110		11,814
Total	$	344,546		383,681