Annual report pursuant to Section 13 and 15(d)

Accounts Payable and Accrued Liabilities (Details)

v3.22.2.2
Accounts Payable and Accrued Liabilities (Details)
$ in Thousands
12 Months Ended
May 31, 2022
USD ($)
item
May 31, 2021
USD ($)
item
Concentration Risk [Line Items]    
Accounts payable $ 67,974 $ 65,897
Number of vendors | item 2 2
Compensation and related expense $ 1,504 $ 4,005
Legal fees and settlement 2,006 11,008
Clinical expenses 3,727 1,462
Other liabilities 1,624 2,598
Total accrued liabilities $ 8,861 19,073
Accrued legal settlement   $ 10,600
Accounts Payable | Credit Availability Concentration Risk [Member] | Vendor One [Member]    
Concentration Risk [Line Items]    
Concentration Risk, Percentage 57.00% 72.00%
Accounts Payable | Credit Availability Concentration Risk [Member] | Vendor Two [Member]    
Concentration Risk [Line Items]    
Concentration Risk, Percentage 17.00% 14.00%