Annual report pursuant to Section 13 and 15(d)

Income Taxes (Narrative) (Details)

v3.22.2
Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
May 31, 2022
May 31, 2021
Income Tax Contingency [Line Items]    
NOL carry forwards $ 5.6 $ 7.6
Reserve for uncertain tax positions 48.2 20.4
Impact uncertain tax benefits, if recognized, on effective income tax rate 48.2 $ 20.4
Federal [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards $ 0.8  
Federal [Member] | Minimum [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards, Expiration date May 31, 2025  
Federal [Member] | Maximum [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards, Expiration date May 31, 2037  
State [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards $ 4.4  
State [Member] | Minimum [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards, Expiration date May 31, 2023  
State [Member] | Maximum [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards, Expiration date May 31, 2041  
Foreign [Member]    
Income Tax Contingency [Line Items]    
NOL carry forwards $ 0.4