Quarterly report [Sections 13 or 15(d)]

Equity Incentive Plan - Equity Incentive Plan (Details)

v3.26.1
Equity Incentive Plan - Equity Incentive Plan (Details)
shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Jun. 01, 2025
Feb. 28, 2026
USD ($)
shares
Feb. 28, 2025
USD ($)
Feb. 28, 2026
USD ($)
plan
shares
Feb. 28, 2025
USD ($)
May 31, 2025
shares
Share-based Compensation            
Number of active plans | plan       1    
Selling, General and Administrative Expenses [Member]            
Share-based Compensation            
Stock-based compensation expense | $   $ 0.5 $ 0.3 $ 0.8 $ 1.0  
2012 Equity Incentive Plan            
Share-based Compensation            
Number of shares authorized for issuance | shares   79.3   79.3   66.8
Percentage of share outstanding 1.00%