XML 57 R46.htm IDEA: XBRL DOCUMENT v3.21.4
Accrued Liabilities (Details) - USD ($)
$ in Thousands
Nov. 30, 2021
May 31, 2021
Payables and Accruals [Abstract]    
Payroll and related expenses $ 13,308 $ 20,408
Royalties 2,260 2,663
Accrued severance 29 548
Sales and franchise taxes 1,081 631
Outside services 4,929 4,256
Litigation Matters 0 975
Rebates 771 544
Other 5,337 5,434
Total accrued liabilities $ 27,715 $ 35,459