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Segments and Geographic Information
 12 Months Ended
May 31, 2022
Segment Reporting [Abstract]  
SEGMENTS AND GEOGRAPHIC INFORMATION SEGMENTS AND GEOGRAPHIC INFORMATION
Segment information
The Company considers the business to be a single operating segment engaged in the development, manufacture and sale of medical devices for vascular access, peripheral vascular disease and oncology on a global basis. The Company's chief operating decision maker, the President and Chief Executive Officer (CEO), evaluates the various global product portfolios on a net sales basis to among, other items, allocate resources and assess performance utilizing numerous metrics and breakouts of the data including Global Business Unit, Med Tech, Med Device and geography. Executives reporting to the CEO include those responsible for commercial operations, manufacturing operations, regulatory and quality and certain corporate functions. The CEO evaluates profitability, investment and cash flow metrics on a consolidated global basis due to shared infrastructure and resources.
The table below summarizes net sales by Global Business Unit:
 Year ended May 31,
(in thousands)202220212020
Net sales by Product Category
Endovascular Therapies$160,925 $135,079 $112,706 
Vascular Access100,193 101,310 94,299 
Oncology/Surgery55,101 54,621 57,152 
Total$316,219 $291,010 $264,157 
The table below summarizes net sales by Med Tech and Med Device:
Year ended May 31,
(in thousands)202220212020
Net Sales
Med Tech$78,717 $55,731 $41,019 
Med Device237,502 235,279 223,138 
Total$316,219 $291,010 $264,157 
Geographic information
The table below summarizes net sales by geographic area based on external customer location:
 Year ended May 31,
(in thousands)202220212020
Net sales by Geography
United States$265,963 $237,043 $207,980 
International50,256 53,967 56,177 
Total$316,219 $291,010 $264,157 
For fiscal years 2022, 2021 and 2020, international sales as a percentage of total net sales were 16%, 19% and 21%, respectively. Sales to any one country outside the U.S., as determined by shipment destination, did not comprise a material portion of net sales in any of the last three fiscal years. In addition, no one customer represents more than 10% of consolidated net sales. 96% of long-lived assets are located within the United States.