v3.26.1
Stockholders' Equity - Compensation Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
May 31, 2026
May 31, 2025
May 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Stock based compensation pre tax amount $ 13,960 $ 9,772 $ 10,529
Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Stock based compensation pre tax amount 291 218 288
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Stock based compensation pre tax amount 8,984 5,479 5,595
Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Stock based compensation pre tax amount 1,461 1,413 1,400
Income Statement Location [Axis]: us-gaap:SellingAndMarketingExpense      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Stock based compensation pre tax amount 3,216 2,554 3,243
Income Statement Location [Axis]: ango:AcquisitionRestructuringAndOtherItemsNet      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Stock based compensation pre tax amount $ 8 $ 108 $ 3