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Segment and Geographic Information - Summary of Net Sales by Product Category (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2021	Feb. 29, 2020
Segment Reporting Information [Line Items]
Net sales	$ 71,182	$ 69,780	$ 214,168	$ 205,825
Vascular Interventions & Therapies
Segment Reporting Information [Line Items]
Net sales	33,251	30,552	97,008	90,616
Vascular Access
Segment Reporting Information [Line Items]
Net sales	24,813	24,642	76,848	70,585
Oncology
Segment Reporting Information [Line Items]
Net sales	$ 13,118	$ 14,586	$ 40,312	$ 44,624

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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