General form of registration statement for all companies including face-amount certificate companies

Summary of Significant Accounting Policies - Fair value of financial instruments (Details)

v3.23.2
Summary of Significant Accounting Policies - Fair value of financial instruments (Details) - USD ($)
$ in Thousands
May 31, 2022
May 31, 2021
Level 1    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Assets fair value $ 0 $ 0
Liabilities fair value 0 0
Level 2    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Assets fair value 0 0
Liabilities fair value 0 0
Level 3    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Assets fair value 0 0
Liabilities fair value $ 0 $ 0